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Cushion|Natural|GIA

1.28ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 7358737542

Certificate GIA 7358737542

Diamond specifications and retailer prices

From HK$21,122 HKD
As of November 4, 2026
Save HK$24,654 HKD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$45,776 HKD at MOH London · As of November 7, 2026
View at MOH London

About this 1.28ct natural cushion diamond

This 1.28ct natural cushion sits in the one-and-a-quarter to one-and-a-half 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 7358737542. Listed at 15 retailers as of November 4, 2026, with prices from HK$21,122 to HK$45,776, a HK$24,654 spread on the same certified stone. MOH London lists it at HK$45,776. 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

1.28
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7358737542
Dimensions6.42 × 5.66 × 3.77 mm
L/W Ratio1.13
Top View
6.42 mm5.66 mm1.28 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7358737542
Side View
Table 69.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 66.5%

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 4
Current: HK$45,776 HKD|Low: HK$21,522 HKD|High: HK$46,572 HKD|Avg: HK$28,382 HKD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 10HK$21,522 HKD
Retailer 6HK$21,670 HKD
Retailer 7HK$22,329 HKD
Retailer 8HK$23,410 HKD
Retailer 5HK$24,931 HKD
Retailer 9HK$26,812 HKD
Retailer 2HK$28,473 HKD
Retailer 3HK$30,213 HKD
Retailer 4HK$33,583 HKD
MOH LondonHK$45,776 HKD

45 data points across 10 retailers

15 retailersHK$21,122 HKD to HK$45,776 HKD

B+
Cheapest Retailer
-
HK$21,122 HKD
B+
Retailer 2
-
HK$21,522 HKD
View
B+
Retailer 3
-
HK$21,670 HKD
View
B+
Retailer 4
-
HK$22,047 HKD
View
B+
Retailer 5
-
HK$22,329 HKD
View
B
Retailer 6
-
HK$23,410 HKD
View
B
Retailer 7
-
HK$24,178 HKD
View
Retailer 8
-
HK$24,931 HKD
View
Price last confirmed 9 days ago
B
Retailer 9
-
HK$26,812 HKD
View
B
Retailer 10
-
HK$27,086 HKD
View
B
Retailer 11
-
HK$28,473 HKD
View
B
Retailer 12
-
HK$30,213 HKD
View
Retailer 13
-
HK$31,177 HKD
View
Price last confirmed 15 days ago
B
Retailer 14
-
HK$33,583 HKD
View
Most Expensive
C
MOH London
2DE41333E · Nov 7
HK$45,776 HKD
£4,599 GBP
View
14 more retailers have this diamond
Prices start from HK$21,122 HKDSave up to HK$24,654 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+
1.28ct Cushion
HK$21,122 HKD