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Heart|Natural|IGI

15.56ct I VS1 Heart Natural Diamond

VG • I/VS1 • IGI 825677566

Shape and cutting style on the report: Heart brilliant

Certificate IGI 825677566

Diamond specifications and retailer prices

From $749,592 SGD
ZAR 9,472,568 ZAR
As of November 1, 2026
Save $12,906 SGD (2%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $762,498 SGD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 15.56ct natural heart diamond

This 15.56ct natural heart sits in the over five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 825677566. Listed at 2 retailers as of November 1, 2026, with a relatively tight 2% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

15.56
Carat
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.4°
Pavilion angle39°
OriginNatural
Grading LabIGI
CertificateIGI 825677566
Dimensions15.38 × 17.17 × 10.27 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
15.38 mm17.17 mm15.56 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 825677566
Side View
Table 63.0%Crown 37.4°Girdle: MED-THKPavilion 39°CuletDepth 59.7%

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: $749,592 SGD|Low: $538,519 SGD|High: $762,498 SGD|Avg: $659,959 SGD|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Reve Diamonds
November 1, 2026
Retailer 4$541,477 SGD
Retailer 2$623,123 SGD
Retailer 5$641,663 SGD
Retailer 3$683,829 SGD
Retailer 1$749,592 SGD
Reve Diamonds$762,498 SGD

19 data points across 6 retailers

2 retailers$749,592 SGD to $762,498 SGD

B+
Cheapest Retailer
-
$749,592 SGD
ZAR 9,472,568 ZAR
Most Expensive
B
Reve Diamonds
6380115C0 · Nov 1
$762,498 SGD
$596,447 USD
View
1 more retailer has this diamond
Prices start from $749,592 SGDSave up to $12,906 SGD

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+
15.56ct Heart
$749,592 SGD