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Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 2537925451

Certificate GIA 2537925451

Diamond specifications and retailer prices

From HK$34,806 HKD
As of November 5, 2026
Save HK$32,486 HKD (48%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$77,191 HKD at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.7ct natural heart diamond

This 1.7ct natural heart sits in the one-and-a-half to two carat band, graded J 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 2537925451. Listed at 19 retailers as of November 5, 2026, with a 93% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2537925451
Dimensions7.19 × 8.19 × 4.88 mm
L/W Ratio1.14
Top View
7.19 mm8.19 mm1.70 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537925451
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.6%

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 5
Current: HK$48,756 HKD|Low: HK$34,704 HKD|High: HK$68,977 HKD|Avg: HK$45,978 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 9HK$34,806 HKD
Retailer 6HK$36,624 HKD
Retailer 2HK$39,877 HKD
Retailer 8HK$41,350 HKD
Retailer 11HK$42,385 HKD
Retailer 5HK$44,352 HKD
Retailer 3HK$46,460 HKD
Retailer 10HK$47,134 HKD
Retailer 1HK$48,756 HKD
Retailer 7HK$56,030 HKD
Retailer 4HK$67,292 HKD

40 data points across 11 retailers

19 retailersHK$34,806 HKD to HK$67,292 HKD

B+
Cheapest Retailer
-
HK$34,806 HKD
B+
Retailer 2
-
HK$36,624 HKD
View
Retailer 3
-
HK$39,877 HKD
View
Price last confirmed 11 days ago
B+
Retailer 4
-
HK$41,350 HKD
View
B
Retailer 5
-
HK$42,385 HKD
View
Final sale: no returns
B+
Retailer 6
-
HK$42,769 HKD
View
B+
Retailer 7
-
HK$42,792 HKD
View
B+
Retailer 8
-
HK$44,352 HKD
View
B
Retailer 9
-
HK$44,712 HKD
View
Retailer 10
-
HK$46,154 HKD
View
Price last confirmed 22 days ago
Retailer 11
-
HK$46,154 HKD
View
Price last confirmed 22 days ago
Retailer 12
-
HK$46,154 HKD
View
Price last confirmed 20 days ago
Retailer 13
-
HK$46,460 HKD
View
Price last confirmed 29 days ago
B
Retailer 14
-
HK$47,134 HKD
View
B
Retailer 15
-
HK$48,756 HKD
View
Retailer 16
-
HK$53,255 HKD
View
Price last confirmed 19 days ago
B
Retailer 17
-
HK$56,030 HKD
View
B
Retailer 18
-
HK$67,292 HKD
View
Most Expensive
NZ Jewellers
757a0c92-cc31-4100-b482-86a769ea811a · Oct 18
HK$77,191 HKD
$9,849 USD
View
Price last confirmed 20 days ago
18 more retailers have this diamond
Prices start from HK$34,806 HKDSave up to HK$32,486 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 Heart
HK$34,806 HKD