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0.31ct G SI2 Round Lab Grown Diamond

EX • G/SI2 • GIA 1188631626

Certificate GIA 1188631626

Diamond specifications and retailer prices

From $455 NZD
₹24,406 INR
As of November 1, 2026
Save $1,005 NZD (69%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,460 NZD at MOH London · As of November 1, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1188631626. Listed at 4 retailers as of November 1, 2026, with prices from $455 to $1,460, a $1,005 spread on the same certified stone. MOH London lists it at $1,460. 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
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 1188631626
Dimensions4.37 × 4.36 × 2.71 mm
L/W Ratio1.00
Top View
4.37 mm4.36 mm0.31 ctG / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1188631626
Side View
Table 55.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.1%

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: $1,460 NZD|Low: $455 NZD|High: $1,460 NZD|Avg: $909 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 2$455 NZD
Retailer 4$817 NZD
Retailer 5$945 NZD
Retailer 6$951 NZD
Retailer 3$1,301 NZD
MOH London$1,460 NZD

2 data points across 6 retailers

4 retailers$455 NZD to $1,460 NZD

B+
Cheapest Retailer
-
$455 NZD
₹24,406 INR
B
Retailer 2
-
$817 NZD
£362 GBP
View
B
Retailer 3
-
$1,301 NZD
£577 GBP
View
Most Expensive
B
MOH London
265CA7A47 · Nov 1
$1,460 NZD
£648 GBP
View
3 more retailers have this diamond
Prices start from $455 NZDSave up to $1,005 NZD

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
$455 NZD