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Cushion|Natural|GIA

0.31ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 1539081595

Certificate GIA 1539081595

Diamond specifications and retailer prices

From HK$2,903 HKD
$370 USD
As of November 1, 2026
Save HK$3,544 HKD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$6,447 HKD 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 HK$2,903 to HK$6,447, a HK$3,544 spread on the same certified stone. MOH London lists it at HK$6,447. 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
H
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$6,447 HKD|Low: HK$2,864 HKD|High: HK$6,487 HKD|Avg: HK$4,127 HKD|+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 4HK$2,903 HKD
Retailer 3HK$2,997 HKD
Retailer 9HK$3,005 HKD
Retailer 10HK$3,225 HKD
Retailer 2HK$3,622 HKD
Retailer 8HK$3,827 HKD
Retailer 7HK$4,329 HKD
Retailer 11HK$4,440 HKD
Retailer 6HK$5,149 HKD
Retailer 5HK$5,651 HKD
MOH LondonHK$6,447 HKD

45 data points across 11 retailers

11 retailersHK$2,903 HKD to HK$6,447 HKD

B+
Cheapest Retailer
-
HK$2,903 HKD
$370 USD
B+
Retailer 2
-
HK$3,005 HKD
$383 USD
View
B+
Retailer 3
-
HK$3,225 HKD
$411 USD
View
B
Retailer 4
-
HK$3,622 HKD
£363 GBP
View
Retailer 5
-
HK$3,812 HKD
$486 USD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
HK$3,827 HKD
£384 GBP
View
B
Retailer 7
-
HK$4,329 HKD
ZAR 8,914 ZAR
View
Retailer 8
-
HK$4,440 HKD
A$871 AUD
View
Price last confirmed 28 days ago
B
Retailer 9
-
HK$5,149 HKD
€625 EUR
View
B
Retailer 10
-
HK$5,651 HKD
£567 GBP
View
Most Expensive
B
MOH London
B019B4339 · Nov 1
HK$6,447 HKD
£647 GBP
View
10 more retailers have this diamond
Prices start from HK$2,903 HKDSave up to HK$3,544 HKD

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
HK$2,903 HKD