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Round|Lab Grown|IGI

6.64ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • IGI LG629436970

Shape and cutting style on the report: Round brilliant

Certificate IGI LG629436970

Diamond specifications and retailer prices

From £778 GBP
$1,042 USD
As of October 31, 2026
Save £2,022 GBP (72%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,800 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 6.64ct lab-grown round diamond

This 6.64ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG629436970 or 629436970. Listed at 20 retailers as of October 31, 2026, with prices from £778 to £2,800, a £2,022 spread on the same certified stone. Taylor and Hart lists it at £2,800. 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

6.64
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629436970
Dimensions12.27 × 12.21 × 7.26 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.27 mm12.21 mm6.64 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629436970
Side View
Table 61.0%Crown 31.8°Girdle: MediumPavilion 41.2°Culet: NoneDepth 59.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £1,226 GBP|Low: £778 GBP|High: £2,763 GBP|Avg: £1,570 GBP|+2.0%
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
October 31, 2026
Retailer 2£778 GBP
Retailer 13£805 GBP
Retailer 7£937 GBP
Retailer 3£1,170 GBP
Retailer 1£1,226 GBP
Retailer 12£1,290 GBP
Retailer 6£1,492 GBP
Retailer 8£1,558 GBP
Retailer 10£1,791 GBP
Retailer 5£2,132 GBP
Retailer 4£2,218 GBP
Retailer 11£2,518 GBP
Retailer 9£2,735 GBP

38 data points across 13 retailers

20 retailers£778 GBP to £2,800 GBP

Retailer 1
-
£666 GBP
$893 USD
Price last confirmed 30 days ago
Retailer 2
-
£694 GBP
$930 USD
View
Price last confirmed 33 days ago
Retailer 3
-
£755 GBP
$1,012 USD
View
Price last confirmed 38 days ago
A
Retailer 4
-
£778 GBP
$1,042 USD
View
Final sale: no returns
Retailer 5
-
£794 GBP
$1,064 USD
View
Price last confirmed 34 days ago
Retailer 6
-
£805 GBP
$1,079 USD
View
Price last confirmed 29 days ago
A
Retailer 7
-
£937 GBP
$1,255 USD
View
A
Retailer 8
-
£1,170 GBP
$1,568 USD
View
A
Retailer 9
-
£1,226 GBP
View
B+
Retailer 10
-
£1,290 GBP
$1,728 USD
View
B+
Retailer 11
-
£1,492 GBP
A$3,075 AUD
View
B+
Retailer 12
-
£1,558 GBP
ZAR 33,722 ZAR
View
B+
Retailer 13
-
£1,791 GBP
$2,400 USD
View
B+
Retailer 14
-
£2,132 GBP
$2,856 USD
View
B+
Retailer 15
-
£2,218 GBP
View
Retailer 16
-
£2,264 GBP
$3,033 USD
View
Price last confirmed 31 days ago
Retailer 17
-
£2,264 GBP
$3,033 USD
View
Price last confirmed 35 days ago
B
Retailer 18
-
£2,518 GBP
$3,374 USD
View
B
Retailer 19
-
£2,735 GBP
View
Most Expensive
B
Taylor and Hart
YMSQ2YM · Oct 31
£2,800 GBP
$3,752 USD
View
19 more retailers have this diamond
Prices start from £778 GBPSave up to £2,022 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
6.64ct Round
£778 GBP