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Round|Lab Grown|IGI

6.57ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG797656334

Shape and cutting style on the report: Round brilliant

Certificate IGI LG797656334

Diamond specifications and retailer prices

From £984 GBP
HK$10,300 HKD
As of October 31, 2026
5 retailers carry this diamond
Most expensive: £4,814 GBP at Brilliant Earth · As of October 10, 2026
View at Brilliant Earth

About this 6.57ct lab-grown round diamond

This 6.57ct 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 LG797656334 or 797656334. Listed at 5 retailers as of October 31, 2026. 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

6.57
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797656334
Dimensions12.20 × 12.11 × 7.33 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.20 mm12.11 mm6.57 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797656334
Side View
Table 56.0%Crown 33°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £4,814 GBP|Low: £854 GBP|High: £4,814 GBP|Avg: £2,058 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 13, 2026
Retailer 10£854 GBP
Retailer 12£984 GBP
Retailer 3£1,251 GBP
Retailer 5£1,305 GBP
Retailer 9£1,364 GBP
Retailer 6£1,651 GBP
Retailer 2£2,126 GBP
Retailer 8£2,646 GBP
Retailer 7£2,934 GBP
Retailer 4£2,967 GBP
Retailer 11£2,974 GBP
Brilliant Earth£4,814 GBP

24 data points across 12 retailers

5 retailers

A
Cheapest Retailer
-
£984 GBP
HK$10,300 HKD
Retailer 2
-
£1,651 GBP
ZAR 35,734 ZAR
View
Price last confirmed 22 days ago
Retailer 3
-
£2,934 GBP
View
Price last confirmed 24 days ago
Retailer 4
-
£2,974 GBP
$3,985 USD
View
Price last confirmed 23 days ago
Most Expensive
Brilliant Earth
20165668A · Oct 10
£4,814 GBP
$6,450 USD
View
Price last confirmed 21 days ago
4 more retailers have this diamond
Prices start from £984 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
6.57ct Round
£984 GBP