Round|Lab Grown|GIA

0.40ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • GIA 6262737411

Certificate GIA 6262737411

Diamond specifications and retailer prices

From $495 USD
£390 GBP
As of October 30, 2026
Save $388 USD (44%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $883 USD at MOH London · As of October 26, 2026
View at MOH London

About this 0.4ct lab-grown round diamond

This 0.4ct lab-grown round sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6262737411. Listed at 3 retailers as of October 26, 2026, with prices from $495 to $883, a $388 spread on the same certified stone. MOH London lists it at $883. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.40
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6262737411
Dimensions4.72 × 4.68 × 2.94 mm
L/W Ratio1.01
Top View
4.72 mm4.68 mm0.40 ctH / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6262737411
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 62.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $883 USD|Low: $459 USD|High: $892 USD|Avg: $662 USD|+1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 3$495 USD
Retailer 2$597 USD
Retailer 4$678 USD
MOH London$883 USD

41 data points across 4 retailers

3 retailers$495 USD to $883 USD

B
Cheapest Retailer
-
$495 USD
£390 GBP
B
Retailer 2
-
$597 USD
€569 EUR
View
Most Expensive
B
MOH London
B2DB2920E · Oct 26
$883 USD
£695 GBP
View
2 more retailers have this diamond
Prices start from $495 USDSave up to $388 USD

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
0.40ct Round
$495 USD