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Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

VG • H/SI1 • GIA 5231997262

Certificate GIA 5231997262

Diamond specifications and retailer prices

From HK$29,894 HKD
$3,810 USD
As of November 1, 2026
Save HK$32,727 HKD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$75,872 HKD at NZ Jewellers · As of September 25, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5231997262. Listed at 18 retailers as of October 27, 2026, with a 109% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231997262
Dimensions6.95 × 7.95 × 4.68 mm
L/W Ratio1.14
Girdle conditionFaceted
Top View
6.95 mm7.95 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231997262
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.8%

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 1
Current: HK$36,092 HKD|Low: HK$29,526 HKD|High: HK$69,503 HKD|Avg: HK$40,159 HKD|-3.4%
Retailer 1
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
November 2, 2026
Retailer 13HK$29,894 HKD
Retailer 9HK$29,928 HKD
Retailer 12HK$31,620 HKD
Retailer 10HK$32,765 HKD
Retailer 6HK$33,519 HKD
Retailer 7HK$33,581 HKD
Retailer 4HK$33,691 HKD
Retailer 15HK$33,731 HKD
Retailer 3HK$35,582 HKD
Retailer 1HK$36,092 HKD
Retailer 2HK$37,575 HKD
Retailer 11HK$38,973 HKD
Retailer 8HK$44,313 HKD
Retailer 16HK$48,174 HKD
Retailer 14HK$61,541 HKD
Retailer 5HK$62,621 HKD

25 data points across 16 retailers

18 retailersHK$29,894 HKD to HK$62,621 HKD

A
Cheapest Retailer
-
HK$29,894 HKD
$3,810 USD
A
Retailer 2
-
HK$29,928 HKD
View
A
Retailer 3
-
HK$31,620 HKD
$4,030 USD
View
A
Retailer 4
-
HK$32,765 HKD
$4,176 USD
View
Final sale: no returns
A
Retailer 5
-
HK$33,519 HKD
$4,272 USD
View
A
Retailer 6
-
HK$33,581 HKD
$4,280 USD
View
A
Retailer 7
-
HK$33,691 HKD
$4,294 USD
View
A
Retailer 8
-
HK$33,731 HKD
€4,094 EUR
View
B+
Retailer 9
-
HK$35,582 HKD
$4,535 USD
View
B+
Retailer 10
-
HK$36,092 HKD
$4,600 USD
View
B+
Retailer 11
-
HK$37,575 HKD
$4,789 USD
View
B+
Retailer 12
-
HK$38,973 HKD
£3,911 GBP
View
Retailer 13
-
HK$44,313 HKD
A$8,689 AUD
View
Price last confirmed 23 days ago
B
Retailer 14
-
HK$44,716 HKD
A$8,768 AUD
View
B+
Retailer 15
-
HK$48,174 HKD
ZAR 99,190 ZAR
View
B
Retailer 16
-
HK$61,541 HKD
£6,176 GBP
View
B
Retailer 17
-
HK$62,621 HKD
$7,981 USD
View
Most Expensive
NZ Jewellers
a7f576fe-f550-4bb9-97c3-38e66aeea21e · Sep 25
HK$75,872 HKD
$9,670 USD
View
Price last confirmed 38 days ago
17 more retailers have this diamond
Prices start from HK$29,894 HKDSave up to HK$32,727 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$29,894 HKD