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Cushion|Natural|GIA

0.31ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2557871850

Certificate GIA 2557871850

Diamond specifications and retailer prices

From $441 SGD
$344 USD
As of October 28, 2026
Save $629 SGD (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,070 SGD at MOH London · As of October 26, 2026
View at MOH London

About this 0.31ct natural cushion diamond

This 0.31ct natural cushion sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557871850. Listed at 9 retailers as of October 26, 2026, with prices from $441 to $1,070, a $629 spread on the same certified stone. MOH London lists it at $1,070. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557871850
Dimensions3.89 × 3.71 × 2.55 mm
L/W Ratio1.05
Key to symbols
Crystal
Top View
3.89 mm3.71 mm0.31 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557871850
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 68.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $1,070 SGD|Low: $441 SGD|High: $1,081 SGD|Avg: $754 SGD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 6$441 SGD
Retailer 3$503 SGD
Retailer 2$604 SGD
Retailer 7$634 SGD
Retailer 8$716 SGD
Retailer 9$741 SGD
Retailer 5$855 SGD
Retailer 4$949 SGD
MOH London$1,070 SGD

36 data points across 9 retailers

9 retailers$441 SGD to $1,070 SGD

A
Cheapest Retailer
-
$441 SGD
$344 USD
B+
Retailer 2
-
$503 SGD
$392 USD
View
B
Retailer 3
-
$604 SGD
£371 GBP
View
B+
Retailer 4
-
$634 SGD
£390 GBP
View
B
Retailer 5
-
$716 SGD
ZAR 9,026 ZAR
View
B
Retailer 6
-
$741 SGD
A$890 AUD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$855 SGD
€635 EUR
View
B
Retailer 8
-
$949 SGD
£583 GBP
View
Most Expensive
B
MOH London
073C9E438 · Oct 26
$1,070 SGD
£657 GBP
View
8 more retailers have this diamond
Prices start from $441 SGDSave up to $629 SGD

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.

A
0.31ct Cushion
$441 SGD