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Radiant|Lab Grown|IGI

6.63ct D VVS2 Radiant Lab Grown Diamond

ID • D/VVS2 • IGI LG840639638

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

Certificate IGI LG840639638

Diamond specifications and retailer prices

From £2,140 GBP
$2,867 USD
As of October 29, 2026
Save £6,868 GBP (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £9,008 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 6.63ct lab-grown radiant diamond

This 6.63ct 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 LG840639638 or 840639638. Listed at 16 retailers as of October 29, 2026, with prices from £2,140 to £9,008, a £6,868 spread on the same certified stone. Brilliant Earth lists it at £9,008. 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

6.63
Carat
D
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840639638
Dimensions13.20 × 9.07 × 6.10 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.20 mm9.07 mm6.63 ctD / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840639638
Side View
Table 65.0%Crown 44.4°Girdle: Slightly ThickPavilion 34.2°Culet: NoneDepth 67.3%

Caratlytics Score

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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 29
Current: £9,008 GBP|Low: £2,140 GBP|High: £13,441 GBP|Avg: £4,810 GBP|-33.0%
Brilliant Earth
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
October 30, 2026
Retailer 5£2,140 GBP
Retailer 2£2,301 GBP
Retailer 15£2,336 GBP
Retailer 9£2,992 GBP
Retailer 12£3,166 GBP
Retailer 14£3,252 GBP
Retailer 13£3,342 GBP
Retailer 16£3,889 GBP
Retailer 4£4,113 GBP
Retailer 3£4,208 GBP
Retailer 10£4,288 GBP
Retailer 8£5,000 GBP
Retailer 11£5,965 GBP
Retailer 7£6,021 GBP
Retailer 6£7,730 GBP
Brilliant Earth£9,008 GBP

26 data points across 16 retailers

16 retailers£2,140 GBP to £9,008 GBP

A
Cheapest Retailer
-
£2,140 GBP
$2,867 USD
Final sale: no returns
A
Retailer 2
-
£2,301 GBP
View
A
Retailer 3
-
£2,336 GBP
$3,130 USD
View
B+
Retailer 4
-
£2,992 GBP
View
B+
Retailer 5
-
£3,166 GBP
$4,242 USD
View
B+
Retailer 6
-
£3,252 GBP
$4,357 USD
View
Retailer 7
-
£3,342 GBP
€4,265 EUR
View
Price last confirmed 7 days ago
B+
Retailer 8
-
£3,889 GBP
$5,211 USD
View
Retailer 9
-
£4,113 GBP
A$8,478 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£4,208 GBP
View
B+
Retailer 11
-
£4,288 GBP
ZAR 92,822 ZAR
View
Retailer 12
-
£5,000 GBP
A$10,307 AUD
View
Price last confirmed 22 days ago
B
Retailer 13
-
£5,965 GBP
View
B
Retailer 14
-
£6,021 GBP
$8,067 USD
View
B
Retailer 15
-
£7,730 GBP
$10,358 USD
View
Most Expensive
B
Brilliant Earth
21675069A · Oct 30
£9,008 GBP
$12,070 USD
View
15 more retailers have this diamond
Prices start from £2,140 GBPSave up to £6,868 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
6.63ct Radiant
£2,140 GBP