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Cushion|Natural|GIA

0.90ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 6512878823

Certificate GIA 6512878823

Diamond specifications and retailer prices

From HK$4,154 HKD
As of November 6, 2026
Save HK$6,168 HKD (60%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$10,322 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 0.9ct natural cushion diamond

This 0.9ct natural cushion sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6512878823. Listed at 8 retailers as of November 4, 2026, with prices from HK$4,154 to HK$10,322, a HK$6,168 spread on the same certified stone. MOH London lists it at HK$10,322. 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

0.90
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6512878823
Dimensions5.72 × 5.71 × 3.81 mm
L/W Ratio1.00
Top View
5.72 mm5.71 mm0.90 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6512878823
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.8%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: HK$10,322 HKD|Low: HK$4,154 HKD|High: HK$10,461 HKD|Avg: HK$6,777 HKD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 3HK$4,154 HKD
Retailer 6HK$4,812 HKD
Retailer 5HK$5,909 HKD
Retailer 2HK$6,764 HKD
Retailer 4HK$7,971 HKD
MOH LondonHK$10,322 HKD

44 data points across 6 retailers

8 retailersHK$4,154 HKD to HK$10,322 HKD

A
Cheapest Retailer
-
HK$4,154 HKD
B+
Retailer 2
-
HK$4,812 HKD
View
B+
Retailer 3
-
HK$5,909 HKD
View
B+
Retailer 4
-
HK$5,972 HKD
View
B+
Retailer 5
-
HK$6,764 HKD
View
B+
Retailer 6
-
HK$7,955 HKD
View
B+
Retailer 7
-
HK$7,971 HKD
View
Most Expensive
B
MOH London
92853AFB3 · Nov 4
HK$10,322 HKD
£1,037 GBP
View
7 more retailers have this diamond
Prices start from HK$4,154 HKDSave up to HK$6,168 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
0.90ct Cushion
HK$4,154 HKD