Radiant|Lab Grown|IGI

6.65ct D VVS2 Radiant Lab Grown Diamond

ID • D/VVS2 • IGI LG845660530

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG845660530

Diamond specifications and retailer prices

From £2,549 GBP
$3,415 USD
As of October 31, 2026
Save £6,644 GBP (72%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £9,193 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 6.65ct lab-grown radiant diamond

This 6.65ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG845660530 or 845660530. Listed at 20 retailers as of October 30, 2026, with prices from £2,549 to £9,193, a £6,644 spread on the same certified stone. Taylor and Hart lists it at £9,193. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

6.65
Carat
D
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle30.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845660530
Dimensions12.38 × 9.21 × 6.23 mm
L/W Ratio1.34
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.38 mm9.21 mm6.65 ctD / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845660530
Side View
Table 65.0%Crown 39.6°Girdle: Slightly ThickPavilion 30.8°Culet: NoneDepth 67.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £5,165 GBP|Low: £2,549 GBP|High: £13,486 GBP|Avg: £5,333 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Taylor and Hart
October 31, 2026
Retailer 5£2,549 GBP
Retailer 16£2,741 GBP
Retailer 6£2,758 GBP
Retailer 11£3,067 GBP
Retailer 14£3,379 GBP
Retailer 13£3,495 GBP
Retailer 19£3,773 GBP
Retailer 4£4,029 GBP
Retailer 12£4,193 GBP
Retailer 8£4,550 GBP
Retailer 3£4,899 GBP
Retailer 7£4,900 GBP
Retailer 17£5,106 GBP
Retailer 1£5,165 GBP
Retailer 2£6,320 GBP
Retailer 18£6,726 GBP
Retailer 9£7,319 GBP
Retailer 15£8,516 GBP
Retailer 10£8,864 GBP
Taylor and Hart£9,193 GBP

17 data points across 20 retailers

20 retailers£2,549 GBP to £9,193 GBP

A
Cheapest Retailer
-
£2,549 GBP
$3,415 USD
Final sale: no returns
A
Retailer 2
-
£2,741 GBP
View
B+
Retailer 3
-
£2,758 GBP
$3,695 USD
View
B+
Retailer 4
-
£3,067 GBP
HK$32,100 HKD
View
B+
Retailer 5
-
£3,379 GBP
$4,528 USD
View
B+
Retailer 6
-
£3,495 GBP
View
B+
Retailer 7
-
£3,773 GBP
$5,055 USD
View
B+
Retailer 8
-
£4,029 GBP
$5,398 USD
View
B+
Retailer 9
-
£4,193 GBP
€5,350 EUR
View
B
Retailer 10
-
£4,550 GBP
View
Retailer 11
-
£4,899 GBP
A$10,098 AUD
View
Price last confirmed 9 days ago
Retailer 12
-
£4,900 GBP
$6,565 USD
View
Price last confirmed 12 days ago
B+
Retailer 13
-
£5,106 GBP
ZAR 110,532 ZAR
View
B
Retailer 14
-
£5,165 GBP
A$10,648 AUD
View
B
Retailer 15
-
£6,320 GBP
$8,468 USD
View
B
Retailer 16
-
£6,726 GBP
View
B
Retailer 17
-
£7,319 GBP
$9,807 USD
View
B
Retailer 18
-
£8,516 GBP
$11,410 USD
View
B
Retailer 19
-
£8,864 GBP
SGD 16,050 SGD
View
Most Expensive
B
Taylor and Hart
QKTGQD1 · Oct 30
£9,193 GBP
$12,317 USD
View
19 more retailers have this diamond
Prices start from £2,549 GBPSave up to £6,644 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
6.65ct Radiant
£2,549 GBP