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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 3555615885

Certificate GIA 3555615885

Diamond specifications and retailer prices

From HK$21,043 HKD
As of November 4, 2026
Save HK$5,808 HKD (22%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$36,742 HKD at Wholesale Diamonds Direct · As of October 14, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555615885. Listed at 7 retailers as of November 4, 2026, with a 28% 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

1.51
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.91°
Pavilion angle40.12°
OriginNatural
Grading LabGIA
CertificateGIA 3555615885
Dimensions6.92 × 7.90 × 4.72 mm
L/W Ratio1.14
Culet sizeNone
Top View
6.92 mm7.90 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555615885
Side View
Table 59.0%Crown 34.91°Girdle: THN-THKPavilion 40.12°Culet: NoneDepth 59.8%

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 4
Current: HK$26,851 HKD|Low: HK$15,949 HKD|High: HK$38,179 HKD|Avg: HK$25,298 HKD|-5.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
November 4, 2026
Retailer 10HK$15,949 HKD
Retailer 4HK$19,719 HKD
Retailer 5HK$21,043 HKD
Retailer 7HK$22,078 HKD
Retailer 3HK$22,917 HKD
Retailer 6HK$23,308 HKD
Retailer 2HK$24,711 HKD
Retailer 1HK$26,851 HKD
Retailer 9HK$28,270 HKD
Retailer 8HK$31,130 HKD
Wholesale Diamonds DirectHK$36,742 HKD

22 data points across 11 retailers

7 retailersHK$21,043 HKD to HK$26,851 HKD

A
Cheapest Retailer
-
HK$21,043 HKD
A
Retailer 2
-
HK$22,078 HKD
View
A
Retailer 3
-
HK$22,917 HKD
View
A
Retailer 4
-
HK$23,308 HKD
View
A
Retailer 5
-
HK$24,711 HKD
View
A
Retailer 6
-
HK$26,851 HKD
View
Most Expensive
Wholesale Diamonds Direct
419410307 · Oct 14
HK$36,742 HKD
$4,688 USD
View
Price last confirmed 23 days ago
6 more retailers have this diamond
Prices start from HK$21,043 HKDSave up to HK$5,808 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
1.51ct Heart
HK$21,043 HKD