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Oval|Lab Grown|IGI

6.50ct D FL Oval Lab Grown Diamond

VG • D/FL • IGI LG818640334

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818640334

Diamond specifications and retailer prices

From £15,721 GBP
$21,065 USD
As of October 28, 2026
Save £30,170 GBP (66%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £45,891 GBP at Taylor and Hart · As of October 28, 2026
View at Taylor and Hart

About this 6.5ct lab-grown oval diamond

This 6.5ct lab-grown oval sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG818640334 or 818640334. Listed at 19 retailers as of October 28, 2026, with prices from £15,721 to £45,891, a £30,170 spread on the same certified stone. Taylor and Hart lists it at £45,891. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

6.50
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818640334
Dimensions14.76 × 10.49 × 6.64 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
14.76 mm10.49 mm6.50 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818640334
Side View
Table 58.0%Crown 36.3°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £34,037 GBP|Low: £15,721 GBP|High: £56,150 GBP|Avg: £26,327 GBP
Retailer 1
Retailer 2
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Retailer 4
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Retailer 12
Retailer 13
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Retailer 18
Taylor and Hart
October 31, 2026
Retailer 18£15,721 GBP
Retailer 14£16,557 GBP
Retailer 2£16,695 GBP
Retailer 5£17,354 GBP
Retailer 7£17,492 GBP
Retailer 16£19,833 GBP
Retailer 4£19,889 GBP
Retailer 3£20,131 GBP
Retailer 13£20,237 GBP
Retailer 15£20,513 GBP
Retailer 10£20,617 GBP
Retailer 17£20,912 GBP
Retailer 9£28,833 GBP
Retailer 12£30,345 GBP
Retailer 1£34,037 GBP
Retailer 8£36,207 GBP
Retailer 11£38,956 GBP
Taylor and Hart£45,891 GBP
Retailer 6£56,150 GBP

12 data points across 19 retailers

19 retailers£15,721 GBP to £45,891 GBP

B+
Cheapest Retailer
-
£15,721 GBP
$21,065 USD
B+
Retailer 2
-
£16,557 GBP
$22,185 USD
View
B+
Retailer 3
-
£16,695 GBP
$22,369 USD
View
B+
Retailer 4
-
£17,354 GBP
$23,252 USD
View
B+
Retailer 5
-
£17,492 GBP
$23,438 USD
View
B+
Retailer 6
-
£19,833 GBP
$26,574 USD
View
B+
Retailer 7
-
£19,889 GBP
$26,649 USD
View
B+
Retailer 8
-
£20,131 GBP
$26,973 USD
View
B+
Retailer 9
-
£20,237 GBP
View
B+
Retailer 10
-
£20,513 GBP
View
B+
Retailer 11
-
£20,617 GBP
$27,625 USD
View
Final sale: no returns
B+
Retailer 12
-
£20,912 GBP
$28,020 USD
View
B
Retailer 13
-
£28,833 GBP
View
B
Retailer 14
-
£30,345 GBP
View
B
Retailer 15
-
£34,037 GBP
€43,434 EUR
View
B
Retailer 16
-
£36,207 GBP
$48,514 USD
View
B
Retailer 17
-
£38,956 GBP
ZAR 843,234 ZAR
View
Most Expensive
B
Taylor and Hart
YG6L43B · Oct 28
£45,891 GBP
$61,489 USD
View
17 more retailers have this diamond
Prices start from £15,721 GBPSave up to £30,170 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+
6.50ct Oval
£15,721 GBP