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Round|Lab Grown|GIA

0.31ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • GIA 6502186608

Certificate GIA 6502186608

Diamond specifications and retailer prices

From $591 USD
As of October 30, 2026
Save $856 USD (59%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,447 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.31ct lab-grown round diamond

This 0.31ct lab-grown round sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6502186608. Listed at 2 retailers as of October 29, 2026, with prices from $591 to $1,447, a $856 spread on the same certified stone. MOH London lists it at $1,447. 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

0.31
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginLab Grown
Grading LabGIA
CertificateGIA 6502186608
Dimensions4.36 × 4.34 × 2.70 mm
L/W Ratio1.00
Top View
4.36 mm4.34 mm0.31 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6502186608
Side View
Table 57.0%CrownGirdlePavilionCuletDepth 62.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $1,447 USD|Low: $591 USD|High: $1,487 USD|Avg: $973 USD|-2.7%
MOH London
Retailer 2
October 29, 2026
Retailer 2$591 USD
MOH London$1,447 USD

4 data points across 2 retailers

2 retailers$591 USD to $1,447 USD

B
Cheapest Retailer
-
$591 USD
Most Expensive
C
MOH London
6502186608 · Oct 29
$1,447 USD
£1,139 GBP
View
1 more retailer has this diamond
Prices start from $591 USDSave up to $856 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
0.31ct Round
$591 USD