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Round|Lab Grown|GIA

6.30ct D FL Round Lab Grown Diamond

EX • D/FL • GIA 6233746826

Certificate GIA 6233746826

Diamond specifications and retailer prices

From £20,454 GBP
$27,406 USD
As of October 31, 2026
Save £21,896 GBP (52%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £42,350 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 6.3ct lab-grown round diamond

This 6.3ct lab-grown round 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 GIA 6233746826. Listed at 12 retailers as of October 29, 2026, with prices from £20,454 to £42,350, a £21,896 spread on the same certified stone. MOH London lists it at £42,350. 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

6.30
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.2°
OriginLab Grown
Grading LabGIA
CertificateGIA 6233746826
Dimensions11.87 × 11.81 × 7.33 mm
L/W Ratio1.01
Top View
11.87 mm11.81 mm6.30 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6233746826
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.9%

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 31
Current: £42,350 GBP|Low: £13,470 GBP|High: £135,937 GBP|Avg: £42,326 GBP|-7.5%
MOH London
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 4£20,454 GBP
Retailer 2£21,379 GBP
Retailer 11£26,423 GBP
Retailer 7£26,719 GBP
Retailer 13£26,719 GBP
Retailer 9£26,932 GBP
Retailer 6£29,672 GBP
Retailer 10£30,535 GBP
Retailer 3£31,085 GBP
Retailer 12£35,152 GBP
MOH London£42,350 GBP
Retailer 5£62,960 GBP
Retailer 14£80,872 GBP
Retailer 8£119,696 GBP

25 data points across 14 retailers

12 retailers£20,454 GBP to £42,350 GBP

B+
Cheapest Retailer
-
£20,454 GBP
$27,406 USD
Final sale: no returns
Retailer 2
-
£21,379 GBP
$28,645 USD
View
B+
Retailer 3
-
£26,423 GBP
$35,404 USD
View
B+
Retailer 4
-
£26,719 GBP
$35,800 USD
View
B+
Retailer 5
-
£26,719 GBP
$35,800 USD
View
B+
Retailer 6
-
£26,932 GBP
$36,086 USD
View
B+
Retailer 7
-
£30,535 GBP
$40,914 USD
View
B
Retailer 8
-
£31,085 GBP
$41,651 USD
View
B+
Retailer 9
-
£35,152 GBP
$47,100 USD
View
Most Expensive
B
MOH London
6233746826 · Oct 29
£42,350 GBP
View
9 more retailers have this diamond
Prices start from £20,454 GBPSave up to £21,896 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+
6.30ct Round
£20,454 GBP