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Heart|Natural|GIA

1.51ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 1236656907

Certificate GIA 1236656907

Diamond specifications and retailer prices

From HK$52,503 HKD
$6,692 USD
As of October 30, 2026
Save HK$31,852 HKD (38%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$100,692 HKD at NZ Jewellers · As of October 21, 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 1236656907. Listed at 9 retailers as of October 29, 2026, with a 61% 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1236656907
Dimensions6.94 × 8.15 × 4.51 mm
L/W Ratio1.17
Top View
6.94 mm8.15 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236656907
Side View
Table 59.0%CrownGirdlePavilionCulet: NoneDepth 55.3%

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 30
Current: HK$100,692 HKD|Low: HK$38,773 HKD|High: HK$100,692 HKD|Avg: HK$64,083 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 5HK$38,773 HKD
Retailer 12HK$52,503 HKD
Retailer 7HK$55,571 HKD
Retailer 4HK$56,089 HKD
Retailer 6HK$56,634 HKD
Retailer 2HK$56,899 HKD
Retailer 9HK$60,200 HKD
Retailer 8HK$61,126 HKD
Retailer 3HK$64,961 HKD
Retailer 11HK$69,466 HKD
Retailer 13HK$72,321 HKD
Retailer 10HK$84,356 HKD
NZ JewellersHK$100,692 HKD

17 data points across 13 retailers

9 retailersHK$52,503 HKD to HK$84,356 HKD

B+
Cheapest Retailer
-
HK$52,503 HKD
$6,692 USD
B+
Retailer 2
-
HK$55,571 HKD
$7,083 USD
View
B+
Retailer 3
-
HK$56,634 HKD
£5,684 GBP
View
B+
Retailer 4
-
HK$56,899 HKD
£5,710 GBP
View
B+
Retailer 5
-
HK$60,200 HKD
$7,673 USD
View
B
Retailer 6
-
HK$61,126 HKD
$7,791 USD
View
Retailer 7
-
HK$69,466 HKD
$8,854 USD
View
Price last confirmed 12 days ago
B
Retailer 8
-
HK$84,356 HKD
£8,466 GBP
View
Most Expensive
NZ Jewellers
4d10a256-f519-45c9-b7a5-dd871cc9cfb4 · Oct 21
HK$100,692 HKD
$12,834 USD
View
Price last confirmed 12 days ago
8 more retailers have this diamond
Prices start from HK$52,503 HKDSave up to HK$31,852 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$52,503 HKD