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Cushion|Natural|GIA

0.31ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 1415650669

Certificate GIA 1415650669

Diamond specifications and retailer prices

From HK$3,923 HKD
$500 USD
As of October 31, 2026
Save HK$4,686 HKD (54%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$8,609 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1415650669. Listed at 7 retailers as of October 31, 2026, with prices from HK$3,923 to HK$8,609, a HK$4,686 spread on the same certified stone. MOH London lists it at HK$8,609. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1415650669
Dimensions3.90 × 3.74 × 2.52 mm
L/W Ratio1.04
Culet sizeNone
Top View
3.90 mm3.74 mm0.31 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1415650669
Side View
Table 64.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 67.4%

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 31
Current: HK$8,609 HKD|Low: HK$3,823 HKD|High: HK$8,709 HKD|Avg: HK$5,408 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5HK$3,923 HKD
Retailer 2HK$4,084 HKD
Retailer 7HK$4,103 HKD
Retailer 8HK$4,223 HKD
Retailer 3HK$5,734 HKD
Retailer 4HK$5,912 HKD
Retailer 6HK$6,107 HKD
MOH LondonHK$8,609 HKD

43 data points across 8 retailers

7 retailersHK$3,923 HKD to HK$8,609 HKD

A
Cheapest Retailer
-
HK$3,923 HKD
$500 USD
B+
Retailer 2
-
HK$4,084 HKD
£410 GBP
View
B+
Retailer 3
-
HK$4,103 HKD
$523 USD
View
B+
Retailer 4
-
HK$5,734 HKD
€696 EUR
View
B+
Retailer 5
-
HK$5,912 HKD
ZAR 12,174 ZAR
View
Retailer 6
-
HK$6,107 HKD
A$1,198 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
51E4744FC · Nov 1
HK$8,609 HKD
£864 GBP
View
6 more retailers have this diamond
Prices start from HK$3,923 HKDSave up to HK$4,686 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.

A
0.31ct Cushion
HK$3,923 HKD