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Cushion|Natural|GIA

1.70ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 2557529237

Certificate GIA 2557529237

Diamond specifications and retailer prices

From HK$29,892 HKD
As of November 6, 2026
Save HK$33,383 HKD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$63,274 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.7ct natural cushion diamond

This 1.7ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557529237. Listed at 14 retailers as of November 4, 2026, with prices from HK$29,892 to HK$63,274, a HK$33,383 spread on the same certified stone. MOH London lists it at HK$63,274. 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

1.70
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557529237
Dimensions8.19 × 6.11 × 4.14 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Pinpoint
Top View
8.19 mm6.11 mm1.70 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557529237
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.8%

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: Nov 6
Current: HK$63,274 HKD|Low: HK$29,892 HKD|High: HK$64,738 HKD|Avg: HK$42,549 HKD|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9HK$29,892 HKD
Retailer 2HK$31,436 HKD
Retailer 7HK$35,793 HKD
Retailer 3HK$38,646 HKD
Retailer 5HK$39,226 HKD
Retailer 10HK$41,021 HKD
Retailer 8HK$42,024 HKD
Retailer 4HK$44,830 HKD
Retailer 6HK$48,600 HKD
MOH LondonHK$63,274 HKD

25 data points across 10 retailers

14 retailersHK$29,892 HKD to HK$63,274 HKD

A
Cheapest Retailer
-
HK$29,892 HKD
B+
Retailer 2
-
HK$31,436 HKD
View
B+
Retailer 3
-
HK$35,793 HKD
View
B+
Retailer 4
-
HK$37,016 HKD
View
B+
Retailer 5
-
HK$37,032 HKD
View
B+
Retailer 6
-
HK$38,646 HKD
View
B
Retailer 7
-
HK$38,960 HKD
View
B+
Retailer 8
-
HK$39,226 HKD
View
Retailer 9
-
HK$40,214 HKD
View
Price last confirmed 22 days ago
B
Retailer 10
-
HK$41,021 HKD
View
B+
Retailer 11
-
HK$42,024 HKD
View
B
Retailer 12
-
HK$44,830 HKD
View
B
Retailer 13
-
HK$48,600 HKD
View
Most Expensive
B
MOH London
CDD8FB650 · Nov 4
HK$63,274 HKD
£6,357 GBP
View
13 more retailers have this diamond
Prices start from HK$29,892 HKDSave up to HK$33,383 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
1.70ct Cushion
HK$29,892 HKD