Heart|Natural|IGI

1.51ct I VS1 Heart Natural Diamond

VG • I/VS1 • IGI 816642220

Shape and cutting style on the report: Heart brilliant

Certificate IGI 816642220

Diamond specifications and retailer prices

From HK$27,523 HKD
$3,508 USD
As of October 26, 2026
Save HK$10,558 HKD (28%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$55,548 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 816642220. Listed at 13 retailers as of October 26, 2026, with a 38% 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
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 816642220
Dimensions6.87 × 7.71 × 4.73 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
6.87 mm7.71 mm1.51 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 816642220
Side View
Table 60.0%Crown 40.3°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 61.3%

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: Oct 26
Current: HK$38,081 HKD|Low: HK$23,234 HKD|High: HK$53,886 HKD|Avg: HK$32,284 HKD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 27, 2026
Retailer 6HK$23,749 HKD
Retailer 10HK$27,523 HKD
Retailer 11HK$28,864 HKD
Retailer 8HK$29,217 HKD
Retailer 5HK$29,814 HKD
Retailer 2HK$29,962 HKD
Retailer 4HK$32,094 HKD
Retailer 7HK$32,427 HKD
Retailer 9HK$34,835 HKD
Retailer 1HK$38,081 HKD
Retailer 3HK$51,554 HKD

33 data points across 11 retailers

13 retailersHK$27,523 HKD to HK$38,081 HKD

Retailer 1
-
HK$23,749 HKD
₹288,287 INR
Price last confirmed 8 days ago
A
Retailer 2
-
HK$27,523 HKD
$3,508 USD
View
A
Retailer 3
-
HK$29,217 HKD
$3,724 USD
View
Retailer 4
-
HK$29,814 HKD
$3,800 USD
View
Price last confirmed 6 days ago
Retailer 5
-
HK$29,962 HKD
$3,819 USD
View
Price last confirmed 9 days ago
Retailer 6
-
HK$31,885 HKD
$4,064 USD
View
Price last confirmed 38 days ago
Retailer 7
-
HK$32,094 HKD
£3,221 GBP
View
Price last confirmed 7 days ago
Retailer 8
-
HK$32,427 HKD
$4,133 USD
View
Price last confirmed 7 days ago
Retailer 9
-
HK$34,835 HKD
$4,440 USD
View
Price last confirmed 7 days ago
Retailer 10
-
HK$36,788 HKD
$4,689 USD
View
Price last confirmed 38 days ago
B+
Retailer 11
-
HK$38,081 HKD
ZAR 78,412 ZAR
View
Retailer 12
-
HK$51,554 HKD
£5,174 GBP
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
b10318c9-8e9e-44d3-a033-2a84c3d205ea · Sep 25
HK$55,548 HKD
$7,080 USD
View
Price last confirmed 38 days ago
12 more retailers have this diamond
Prices start from HK$27,523 HKDSave up to HK$10,558 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$27,523 HKD