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Oval|Lab Grown|IGI

6.29ct D FL Oval Lab Grown Diamond

EX • D/FL • IGI LG754594731

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG754594731

Diamond specifications and retailer prices

From £17,393 GBP
$23,305 USD
As of November 1, 2026
Save £24,065 GBP (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £46,146 GBP at Cape Diamonds · As of September 29, 2026
View at Cape Diamonds

About this 6.29ct lab-grown oval diamond

This 6.29ct lab-grown oval sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754594731 or 754594731. Listed at 12 retailers as of October 31, 2026, with a 138% 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

6.29
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594731
Dimensions14.74 × 10.51 × 6.56 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
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
14.74 mm10.51 mm6.29 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594731
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.4%

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: Nov 1
Current: £46,146 GBP|Low: £15,778 GBP|High: £90,648 GBP|Avg: £33,121 GBP
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 3£16,883 GBP
Retailer 9£17,393 GBP
Retailer 13£19,787 GBP
Retailer 14£21,553 GBP
Retailer 4£22,197 GBP
Retailer 6£22,774 GBP
Retailer 8£26,407 GBP
Retailer 10£27,301 GBP
Retailer 11£30,419 GBP
Retailer 2£33,814 GBP
Retailer 7£41,458 GBP
Cape Diamonds£46,146 GBP
Retailer 5£53,245 GBP
Retailer 12£90,648 GBP

29 data points across 14 retailers

12 retailers£17,393 GBP to £41,458 GBP

B+
Cheapest Retailer
-
£17,393 GBP
$23,305 USD
B+
Retailer 2
-
£19,787 GBP
$26,512 USD
View
B+
Retailer 3
-
£21,553 GBP
$28,879 USD
View
B+
Retailer 4
-
£22,197 GBP
$29,741 USD
View
Retailer 5
-
£26,407 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£27,301 GBP
$36,580 USD
View
B
Retailer 7
-
£30,419 GBP
$40,758 USD
View
B
Retailer 8
-
£33,814 GBP
View
B
Retailer 9
-
£41,458 GBP
€52,904 EUR
View
Most Expensive
Cape Diamonds
cert_754594731 · Sep 29
£46,146 GBP
ZAR 998,870 ZAR
View
Price last confirmed 34 days ago
9 more retailers have this diamond
Prices start from £17,393 GBPSave up to £24,065 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+
6.29ct Oval
£17,393 GBP