CaratHunter
Plans
Round|Lab Grown|GIA

0.31ct G SI2 Round Lab Grown Diamond

EX • G/SI2 • GIA 1188631626

Certificate GIA 1188631626

Diamond specifications and retailer prices

From €229 EUR
₹24,411 INR
As of October 31, 2026
Save €507 EUR (69%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €737 EUR 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 October 31, 2026, with prices from €229 to €737, a €507 spread on the same certified stone. MOH London lists it at €737. 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
Color
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: Oct 31
Current: €737 EUR|Low: €229 EUR|High: €737 EUR|Avg: €458 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 4€229 EUR
Retailer 3€412 EUR
Retailer 5€477 EUR
Retailer 6€480 EUR
Retailer 2€656 EUR
MOH London€737 EUR

2 data points across 6 retailers

4 retailers€229 EUR to €737 EUR

B+
Cheapest Retailer
-
€229 EUR
₹24,411 INR
B
Retailer 2
-
€412 EUR
£362 GBP
View
B
Retailer 3
-
€656 EUR
£577 GBP
View
Most Expensive
B
MOH London
265CA7A47 · Nov 1
€737 EUR
£648 GBP
View
3 more retailers have this diamond
Prices start from €229 EURSave up to €507 EUR

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
€229 EUR