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Cushion|Natural|GIA

1.70ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 5556438420

Certificate GIA 5556438420

Diamond specifications and retailer prices

From HK$65,739 HKD
SGD 11,323 SGD
As of October 31, 2026
Save HK$53,500 HKD (45%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$119,239 HKD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

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 5556438420. Listed at 20 retailers as of October 31, 2026, with prices from HK$65,739 to HK$119,239, a HK$53,500 spread on the same certified stone. 77 Diamonds lists it at HK$119,239. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5556438420
Dimensions8.31 × 6.20 × 4.12 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Indented Natural, Cloud
Top View
8.31 mm6.20 mm1.70 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5556438420
Side View
Table 68.0%CrownGirdle: MED-VTKPavilionCulet: 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: Oct 31
Current: HK$119,239 HKD|Low: HK$55,234 HKD|High: HK$119,239 HKD|Avg: HK$74,697 HKD|+69.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 19HK$55,234 HKD
Retailer 16HK$58,550 HKD
Retailer 10HK$59,965 HKD
Retailer 9HK$65,739 HKD
Retailer 18HK$67,748 HKD
Retailer 4HK$68,179 HKD
Retailer 11HK$68,728 HKD
Retailer 15HK$69,590 HKD
Retailer 17HK$69,741 HKD
Retailer 6HK$75,518 HKD
Retailer 3HK$76,229 HKD
Retailer 5HK$80,123 HKD
Retailer 8HK$90,379 HKD
Retailer 2HK$90,767 HKD
Retailer 12HK$96,118 HKD
Retailer 13HK$96,752 HKD
Retailer 7HK$103,506 HKD
Retailer 14HK$104,174 HKD
77 DiamondsHK$119,239 HKD

23 data points across 19 retailers

20 retailersHK$65,739 HKD to HK$119,239 HKD

Retailer 1
-
HK$55,234 HKD
Price last confirmed 12 days ago
Retailer 2
-
HK$58,550 HKD
₹710,735 INR
View
Price last confirmed 12 days ago
Retailer 3
-
HK$59,965 HKD
$7,643 USD
View
Price last confirmed 18 days ago
Retailer 4
-
HK$61,577 HKD
SGD 10,606 SGD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
HK$65,739 HKD
SGD 11,323 SGD
View
Retailer 6
-
HK$67,748 HKD
$8,635 USD
View
Price last confirmed 11 days ago
B
Retailer 7
-
HK$67,748 HKD
$8,635 USD
View
Retailer 8
-
HK$68,728 HKD
$8,760 USD
View
Price last confirmed 17 days ago
Retailer 9
-
HK$69,590 HKD
A$13,646 AUD
View
Price last confirmed 11 days ago
B
Retailer 10
-
HK$74,904 HKD
A$14,688 AUD
View
Retailer 11
-
HK$75,518 HKD
$9,625 USD
View
Price last confirmed 14 days ago
Retailer 12
-
HK$76,229 HKD
$9,716 USD
View
Price last confirmed 13 days ago
Retailer 13
-
HK$90,379 HKD
ZAR 186,099 ZAR
View
Price last confirmed 15 days ago
B
Retailer 14
-
HK$90,767 HKD
$11,569 USD
View
B
Retailer 15
-
HK$96,118 HKD
$12,251 USD
View
B
Retailer 16
-
HK$96,752 HKD
$12,332 USD
View
B
Retailer 17
-
HK$97,448 HKD
A$19,109 AUD
View
Retailer 18
-
HK$103,506 HKD
£10,388 GBP
View
Price last confirmed 12 days ago
Retailer 19
-
HK$104,174 HKD
£10,455 GBP
View
Price last confirmed 11 days ago
Most Expensive
C
77 Diamonds
CUSZAFRFZ72N · Nov 2
HK$119,239 HKD
£11,967 GBP
View
19 more retailers have this diamond
Prices start from HK$65,739 HKDSave up to HK$53,500 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$65,739 HKD