Cushion|Natural|GIA

0.31ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 1539081595

Certificate GIA 1539081595

Diamond specifications and retailer prices

From $370 USD
As of November 1, 2026
Save $452 USD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $822 USD at MOH London · As of November 1, 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 1539081595. Listed at 11 retailers as of November 1, 2026, with prices from $370 to $822, a $452 spread on the same certified stone. MOH London lists it at $822. 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1539081595
Dimensions3.74 × 3.66 × 2.56 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Key to symbols
Crystal, Cloud
Top View
3.74 mm3.66 mm0.31 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1539081595
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 70.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $822 USD|Low: $365 USD|High: $827 USD|Avg: $526 USD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 4$370 USD
Retailer 3$382 USD
Retailer 9$383 USD
Retailer 10$411 USD
Retailer 2$462 USD
Retailer 8$488 USD
Retailer 7$552 USD
Retailer 11$566 USD
Retailer 6$656 USD
Retailer 5$720 USD
MOH London$822 USD

45 data points across 11 retailers

11 retailers$370 USD to $822 USD

B+
Cheapest Retailer
-
$370 USD
B+
Retailer 2
-
$383 USD
View
B+
Retailer 3
-
$411 USD
View
B
Retailer 4
-
$462 USD
£363 GBP
View
Retailer 5
-
$486 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$488 USD
£384 GBP
View
B
Retailer 7
-
$552 USD
ZAR 8,914 ZAR
View
Retailer 8
-
$566 USD
A$871 AUD
View
Price last confirmed 28 days ago
B
Retailer 9
-
$656 USD
€625 EUR
View
B
Retailer 10
-
$720 USD
£567 GBP
View
Most Expensive
B
MOH London
B019B4339 · Nov 1
$822 USD
£647 GBP
View
10 more retailers have this diamond
Prices start from $370 USDSave up to $452 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 Cushion
$370 USD