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Heart|Natural|GIA

1.51ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 6421555574

Certificate GIA 6421555574

Diamond specifications and retailer prices

From HK$55,508 HKD
$7,075 USD
As of November 1, 2026
Save HK$63,668 HKD (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$119,176 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6421555574. Listed at 9 retailers as of October 30, 2026, with prices from HK$55,508 to HK$119,176, a HK$63,668 spread on the same certified stone. NZ Jewellers lists it at HK$119,176. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6421555574
Dimensions7.22 × 7.86 × 4.32 mm
L/W Ratio1.09
Top View
7.22 mm7.86 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6421555574
Side View
Table 61.0%CrownGirdlePavilionCulet: NoneDepth 55.0%

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 1
Current: HK$99,302 HKD|Low: HK$55,508 HKD|High: HK$100,497 HKD|Avg: HK$74,486 HKD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 4HK$55,508 HKD
Retailer 5HK$65,543 HKD
Retailer 2HK$67,118 HKD
Retailer 6HK$74,487 HKD
Retailer 3HK$77,865 HKD
Retailer 1HK$99,302 HKD

41 data points across 6 retailers

9 retailersHK$55,508 HKD to HK$119,176 HKD

B+
Cheapest Retailer
-
HK$55,508 HKD
$7,075 USD
B+
Retailer 2
-
HK$64,554 HKD
$8,228 USD
View
B+
Retailer 3
-
HK$65,543 HKD
$8,354 USD
View
B+
Retailer 4
-
HK$67,118 HKD
£6,736 GBP
View
B
Retailer 5
-
HK$72,816 HKD
$9,281 USD
View
B
Retailer 6
-
HK$74,487 HKD
$9,494 USD
View
B
Retailer 7
-
HK$77,865 HKD
€9,452 EUR
View
B
Retailer 8
-
HK$99,302 HKD
£9,966 GBP
View
Most Expensive
B
NZ Jewellers
52ea816d-be4c-430b-aec3-b2532433cb30 · Oct 30
HK$119,176 HKD
$15,190 USD
View
8 more retailers have this diamond
Prices start from HK$55,508 HKDSave up to HK$63,668 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+
1.51ct Heart
HK$55,508 HKD