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Cushion|Natural|GIA

1.02ct M SI1 Cushion Natural Diamond

GD • M/SI1 • GIA 2151022020

Certificate GIA 2151022020

Diamond specifications and retailer prices

From HK$18,316 HKD
As of November 6, 2026
Save HK$9,243 HKD (34%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$27,559 HKD at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

About this 1.02ct natural cushion diamond

This 1.02ct natural cushion sits in the classic one-carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2151022020. Listed at 4 retailers as of November 5, 2026, with prices from HK$18,316 to HK$27,559, a HK$9,243 spread on the same certified stone. Cape Diamonds lists it at HK$27,559. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.02
Carat
M
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2151022020
Dimensions6.11 × 5.58 × 3.87 mm
L/W Ratio1.09
Top View
6.11 mm5.58 mm1.02 ctM / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateGIA 2151022020
Side View
Table 68.0%CrownGirdle: ThinPavilionCulet: NoneDepth 69.3%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 6
Current: HK$27,559 HKD|Low: HK$18,316 HKD|High: HK$27,753 HKD|Avg: HK$23,133 HKD|+2.6%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4HK$18,316 HKD
Retailer 5HK$20,816 HKD
Retailer 2HK$22,196 HKD
Retailer 3HK$26,279 HKD
Cape DiamondsHK$27,559 HKD

30 data points across 5 retailers

4 retailersHK$18,316 HKD to HK$27,559 HKD

C
Cheapest Retailer
-
HK$18,316 HKD
C
Retailer 2
-
HK$22,196 HKD
View
C
Retailer 3
-
HK$26,279 HKD
View
Most Expensive
C
Cape Diamonds
cert_2151022020 · Nov 5
HK$27,559 HKD
ZAR 56,807 ZAR
View
3 more retailers have this diamond
Prices start from HK$18,316 HKDSave up to HK$9,243 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.

C
1.02ct Cushion
HK$18,316 HKD