Dirk says first and foremost, look for a stone that is 'alive', has sparkle and lustre. Can you see a black inclusion, or imperfection? Is the stone flat, is the clarity not good and colour down? If you answer yes to any of these questions, then do not buy a stone. Ultimately, there are four factors that determine the value of a diamond, known collectively as the four Cs. 
Emerald cut Full Eternity 4.50 carat PRICE £5700 RRP £9000
Double Row Full Eterniry 6.80 carat PRICE £8800 RRP £12 000
Triple Row Platinum 6.84 carat £16 500.00
5 Stone Platinum 1.29 carat £4000.00
Emerald Head to Toe 3.60 carat £11 000.00
Single Row Platinum 4.95 carat £9700.00
Radiant Platinum 4.85 carat £8330.00
Square Emerald 5.63 carat £15 000.00
Princess Platinum 5 carat £11 600.00
Impurities in a stone block light. Although these inclusions as they are called, make a stone unique, the fewer there are, the more valuable the stone is. The standard measurement starts from flawless (IF or IF) to imperfect (I). To be flawless, a stone must have no inclusion visible to a trained eye, even under 10 times magnification under a good light. 
This is the weight of a diamond. The word is derived from the carob seeds that were used to balance scales in the past. A carat is equal to 200 milligrams and there are 142 carats to one ounce. There are about 100 points to one carat. A common weight sold is one and a half carats. All else being equal, diamond price increases with diamond carat weight, because larger diamonds are more rare and more desirable. But two diamonds of equal carat weight can have very different values (and prices) depending on three other factors of the diamond 4Cs: Clarity, Color, and Cut. It's important to remember that a diamond's value is determined using all of the 4Cs, not just carat weight. 
Diamonds can come in every colour of the spectrum but the most popular are colourless. Icy white diamonds are extremely rare and therefore the most expensive. Stones are graded by how far they stick to or deviate from the purest white, starting from the grade of D, descending down through the alphabet. Every letter designates a more yellow tint. 
Cut refers not to a diamond's shape (e.g. round, oval, pear, etc.) but to a diamond's proportions, symmetry and polish. The beauty of a diamond depends more on cut than any other factor. The creation of the Diamond 4Cs meant two very important things: diamond quality could be communicated in a universal language, and diamond customers could now know exactly what they were about to purchase. 
Double Row Full Eterniry 6.80 carat PRICE £8800 RRP £12 000
Blue Aquamarine 18ct white gold, 0.56ct, £3700.00
3ct Yellow Citrine and diamond white gold ring PRICE £4100 PPR £6400
1.70ct Ruby White gold Multi stone ring PRICE £3400 RRP £5600
2.80ct White gold engagement ring and wedding band PRICE £7300 RRP £10 100
0.60ct Blue Sapphire White gold ring PRICE £2800 RRP £4000
1.20ct Ruby Platinum ring PRICE £3200 RRP £4800
3ct Tourmaline Flower design ring PRICE £4200 RRP £7000
Square Emerald 5.63 carat £15 000.00
1.50ct Cluster Platinum ring PRICE £5500 RRP £7800


18k White Gold, 15.46ct, £11,000
18k White Gold, 15.46ct, £11000
18k White Gold, 29,82ct, £18000
18k White Gold, 5.5ct, £7700 18k White Gold, 6.62ct, £8900 18k White Gold, 4.35ct, £5500 18k White Gold, 15.46ct, £11,000 18k White Gold, 9.51ct, £9800
18k White Gold, 5.44ct, £6200 18k White Gold, 10.52ct, £14500 Platinum 10.52ct £14500 18k White Gold, 5.8ct, £8000


18k White Gold, 1.1ct, £2900
18ct White Gold, 1.46ct, £2800
18ct White Gold, 1.7ct £3000
18ct White Gold, 1.5ct £2500


Flower Bubble, 18k White Gold £9500
Riviera Necklace, Platinum, 11.71ct £21000
Flower Power, 18k White Gold, 20,88ct £14400
Vineyard, 18k White Gold, 13.89ct £9300
Sunburst 14.32ct White gold, £17000
Night Owl, 18k White Gold, 17.45ct, £14900
32.85ct Platinum POA
30" Mezzanine Necklace, Platinum, 45.6ct £42000
Honesty, 18k White Gold, 18.26ct, £17000
Riviera Oval, Platinum, 43.63ct, POR
Be Mine, 18k White Gold, 16.72ct, £26000
By the yard, 33ct £32000
The Green Dream, 25.78ct Platinum POA
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