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6.68ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG754559764

Shape and cutting style on the report: Pentagonal modified brilliant

Certificate IGI LG754559764

Diamond specifications and retailer prices

From £1,907 GBP
$2,555 USD
As of October 26, 2026
Save £1,711 GBP (47%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £3,618 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 6.68ct lab-grown round diamond

This 6.68ct 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 LG754559764 or 754559764. Listed at 2 retailers as of October 26, 2026, with prices from £1,907 to £3,618, a £1,711 spread on the same certified stone. Reve Diamonds lists it at £3,618. 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

6.68
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754559764
Dimensions16.49 × 11.46 × 5.75 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.49 mm11.46 mm6.68 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754559764
Side View
Table 70.0%Crown 40.6°Girdle: MediumPavilion 34.2°CuletDepth 34.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 26
Current: £1,907 GBP|Low: £1,907 GBP|High: £3,618 GBP|Avg: £2,693 GBP|-1.6%
Retailer 1
Reve Diamonds
October 26, 2026
Retailer 1£1,907 GBP
Reve Diamonds£3,618 GBP

6 data points across 2 retailers

2 retailers£1,907 GBP to £3,618 GBP

B+
Cheapest Retailer
-
£1,907 GBP
$2,555 USD
Most Expensive
C
Reve Diamonds
A2E21B881 · Oct 30
£3,618 GBP
$4,848 USD
View
1 more retailer has this diamond
Prices start from £1,907 GBPSave up to £1,711 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.

B+
6.68ct Round
£1,907 GBP