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Marquise|Lab Grown|IGI

6.38ct G VS2 Marquise Lab Grown Diamond

EX • G/VS2 • IGI LG613352248

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG613352248

Diamond specifications and retailer prices

From £651 GBP
$872 USD
As of November 2, 2026
Save £1,711 GBP (72%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,837 GBP at Taylor and Hart · As of October 18, 2026
View at Taylor and Hart

About this 6.38ct lab-grown marquise diamond

This 6.38ct lab-grown marquise sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG613352248 or 613352248. Listed at 16 retailers as of October 31, 2026, with a 263% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

6.38
Carat
G
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG613352248
Dimensions18.62 × 9.79 × 6.13 mm
L/W Ratio1.90
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
18.62 mm9.79 mm6.38 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG613352248
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
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: Nov 2
Current: £651 GBP|Low: £651 GBP|High: £2,803 GBP|Avg: £1,497 GBP|-7.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 14
November 2, 2026
Retailer 1£651 GBP
Retailer 9£708 GBP
Retailer 12£755 GBP
Retailer 5£787 GBP
Retailer 11£817 GBP
Retailer 8£1,161 GBP
Retailer 6£1,172 GBP
Retailer 10£1,212 GBP
Retailer 4£1,758 GBP
Retailer 7£1,818 GBP
Retailer 13£2,081 GBP
Retailer 14£2,122 GBP
Retailer 2£2,361 GBP
Retailer 3£2,769 GBP

44 data points across 14 retailers

16 retailers£651 GBP to £2,361 GBP

A
Cheapest Retailer
-
£651 GBP
$872 USD
A
Retailer 2
-
£708 GBP
$948 USD
View
A
Retailer 3
-
£755 GBP
$1,011 USD
View
A
Retailer 4
-
£787 GBP
$1,055 USD
View
Final sale: no returns
Retailer 5
-
£816 GBP
$1,093 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
£817 GBP
$1,095 USD
View
A
Retailer 7
-
£1,161 GBP
View
A
Retailer 8
-
£1,172 GBP
$1,571 USD
View
B+
Retailer 9
-
£1,212 GBP
$1,624 USD
View
B+
Retailer 10
-
£1,758 GBP
$2,355 USD
View
B+
Retailer 11
-
£1,818 GBP
$2,436 USD
View
B+
Retailer 12
-
£2,081 GBP
View
B
Retailer 13
-
£2,122 GBP
$2,843 USD
View
B+
Retailer 14
-
£2,361 GBP
$3,164 USD
View
Retailer 15
-
£2,769 GBP
View
Price last confirmed 8 days ago
Most Expensive
Taylor and Hart
PW2SYT1 · Oct 18
£2,837 GBP
$3,801 USD
View
Price last confirmed 14 days ago
15 more retailers have this diamond
Prices start from £651 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.

A
6.38ct Marquise
£651 GBP