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Cushion|Natural|GIA

1.00ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6431253100

Certificate GIA 6431253100

Diamond specifications and retailer prices

From HK$15,408 HKD
As of November 6, 2026
Save HK$17,485 HKD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$36,529 HKD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6431253100. Listed at 15 retailers as of November 4, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6431253100
Dimensions5.99 × 5.21 × 3.62 mm
L/W Ratio1.15
Top View
5.99 mm5.21 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6431253100
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.6%

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 6
Current: HK$36,529 HKD|Low: HK$14,429 HKD|High: HK$36,679 HKD|Avg: HK$21,557 HKD|+2.4%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9HK$15,408 HKD
Retailer 8HK$15,737 HKD
Retailer 10HK$16,592 HKD
Retailer 7HK$16,686 HKD
Retailer 6HK$17,054 HKD
Retailer 2HK$18,512 HKD
Retailer 4HK$19,915 HKD
Retailer 3HK$23,379 HKD
Retailer 5HK$32,894 HKD
QueensmithHK$36,529 HKD

39 data points across 10 retailers

15 retailersHK$15,408 HKD to HK$32,894 HKD

B+
Cheapest Retailer
-
HK$15,408 HKD
B+
Retailer 2
-
HK$15,737 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$16,592 HKD
View
B+
Retailer 4
-
HK$16,686 HKD
View
Retailer 5
-
HK$17,054 HKD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
HK$17,485 HKD
View
B+
Retailer 7
-
HK$17,963 HKD
View
B+
Retailer 8
-
HK$18,512 HKD
View
B+
Retailer 9
-
HK$18,967 HKD
View
B+
Retailer 10
-
HK$18,967 HKD
View
B
Retailer 11
-
HK$19,594 HKD
View
B+
Retailer 12
-
HK$19,915 HKD
View
B
Retailer 13
-
HK$23,379 HKD
View
B
Retailer 14
-
HK$32,894 HKD
View
Most Expensive
Queensmith
6431253100 · Oct 28
HK$36,529 HKD
£3,670 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from HK$15,408 HKDSave up to HK$17,485 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+
1.00ct Cushion
HK$15,408 HKD