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Cushion|Natural|GIA

1.70ct K SI1 Cushion Natural Diamond

ID • K/SI1 • GIA 6545515020

Certificate GIA 6545515020

Diamond specifications and retailer prices

From HK$30,958 HKD
As of November 5, 2026
Save HK$23,120 HKD (43%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$54,077 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 6545515020. Listed at 6 retailers as of November 4, 2026, with prices from HK$30,958 to HK$54,077, a HK$23,120 spread on the same certified stone. MOH London lists it at HK$54,077. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545515020
Dimensions7.62 × 6.14 × 4.23 mm
L/W Ratio1.24
Top View
7.62 mm6.14 mm1.70 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545515020
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.9%

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 5
Current: HK$54,077 HKD|Low: HK$27,141 HKD|High: HK$54,874 HKD|Avg: HK$35,645 HKD|+4.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8HK$27,141 HKD
Retailer 5HK$30,958 HKD
Retailer 7HK$31,036 HKD
Retailer 6HK$32,423 HKD
Retailer 4HK$32,862 HKD
Retailer 2HK$36,483 HKD
Retailer 3HK$39,571 HKD
MOH LondonHK$54,077 HKD

44 data points across 8 retailers

6 retailersHK$30,958 HKD to HK$54,077 HKD

A
Cheapest Retailer
-
HK$30,958 HKD
Retailer 2
-
HK$32,423 HKD
View
Price last confirmed 30 days ago
B+
Retailer 3
-
HK$32,862 HKD
View
B+
Retailer 4
-
HK$36,483 HKD
View
B
Retailer 5
-
HK$39,571 HKD
View
Most Expensive
B
MOH London
2F8648C25 · Nov 4
HK$54,077 HKD
£5,433 GBP
View
5 more retailers have this diamond
Prices start from HK$30,958 HKDSave up to HK$23,120 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$30,958 HKD