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Oval|Lab Grown|IGI

6.51ct G VS1 Oval Lab Grown Diamond

EX • G/VS1 • IGI LG851649971

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG851649971

Diamond specifications and retailer prices

From £1,068 GBP
$1,431 USD
As of November 1, 2026
Save £2,352 GBP (69%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,420 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 6.51ct lab-grown oval diamond

This 6.51ct lab-grown oval 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 LG851649971 or 851649971. Listed at 4 retailers as of October 31, 2026, with prices from £1,068 to £3,420, a £2,352 spread on the same certified stone. With Clarity lists it at £3,420. 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

6.51
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851649971
Dimensions14.66 × 10.69 × 6.53 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.66 mm10.69 mm6.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851649971
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £2,578 GBP|Low: £1,068 GBP|High: £3,420 GBP|Avg: £2,537 GBP
Retailer 1
Retailer 2
Retailer 3
With Clarity
November 1, 2026
Retailer 2£1,068 GBP
Retailer 1£2,578 GBP
Retailer 3£3,187 GBP
With Clarity£3,420 GBP

4 data points across 4 retailers

4 retailers£1,068 GBP to £3,420 GBP

A
Cheapest Retailer
-
£1,068 GBP
$1,431 USD
B
Retailer 2
-
£2,578 GBP
View
B
Retailer 3
-
£3,187 GBP
$4,270 USD
View
Most Expensive
B
With Clarity
851649971 · Oct 31
£3,420 GBP
$4,583 USD
View
3 more retailers have this diamond
Prices start from £1,068 GBPSave up to £2,352 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
6.51ct Oval
£1,068 GBP