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Cushion|Natural|GIA

1.70ct H SI1 Cushion Natural Diamond

ID • H/SI1 • GIA 1358142620

Certificate GIA 1358142620

Diamond specifications and retailer prices

From HK$64,123 HKD
$8,173 USD
As of November 2, 2026
Save HK$49,607 HKD (44%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$113,730 HKD at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1358142620. Listed at 20 retailers as of November 1, 2026, with prices from HK$64,123 to HK$113,730, a HK$49,607 spread on the same certified stone. MOH London lists it at HK$113,730. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1358142620
Dimensions7.58 × 6.67 × 4.27 mm
L/W Ratio1.14
Culet sizeNone
Top View
7.58 mm6.67 mm1.70 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1358142620
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.0%

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 2
Current: HK$113,730 HKD|Low: HK$60,686 HKD|High: HK$115,105 HKD|Avg: HK$84,452 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 8HK$64,123 HKD
Retailer 6HK$72,824 HKD
Retailer 7HK$72,824 HKD
Retailer 3HK$79,689 HKD
Retailer 5HK$80,083 HKD
Retailer 2HK$87,405 HKD
Retailer 4HK$106,983 HKD
MOH LondonHK$113,730 HKD

44 data points across 8 retailers

20 retailersHK$64,123 HKD to HK$113,730 HKD

B+
Cheapest Retailer
-
HK$64,123 HKD
$8,173 USD
B
Retailer 2
-
HK$67,340 HKD
$8,583 USD
View
B
Retailer 3
-
HK$68,179 HKD
$8,690 USD
View
B
Retailer 4
-
HK$70,331 HKD
$8,964 USD
View
B
Retailer 5
-
HK$70,599 HKD
CA$12,498 CAD
View
B
Retailer 6
-
HK$72,180 HKD
$9,200 USD
View
B
Retailer 7
-
HK$72,824 HKD
$9,282 USD
View
B
Retailer 8
-
HK$72,824 HKD
$9,282 USD
View
Final sale: no returns
B
Retailer 9
-
HK$79,689 HKD
£7,998 GBP
View
Retailer 10
-
HK$80,083 HKD
A$15,703 AUD
View
Price last confirmed 9 days ago
B
Retailer 11
-
HK$80,685 HKD
$10,284 USD
View
B
Retailer 12
-
HK$81,023 HKD
$10,327 USD
View
B
Retailer 13
-
HK$83,933 HKD
$10,698 USD
View
B
Retailer 14
-
HK$85,675 HKD
$10,920 USD
View
B
Retailer 15
-
HK$85,675 HKD
$10,920 USD
View
B
Retailer 16
-
HK$87,405 HKD
€10,610 EUR
View
B
Retailer 17
-
HK$88,578 HKD
$11,290 USD
View
Retailer 18
-
HK$95,827 HKD
$12,214 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
HK$106,983 HKD
ZAR 220,288 ZAR
View
Most Expensive
B
MOH London
86971E802 · Nov 1
HK$113,730 HKD
£11,414 GBP
View
19 more retailers have this diamond
Prices start from HK$64,123 HKDSave up to HK$49,607 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+
1.70ct Cushion
HK$64,123 HKD