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Heart|Natural|GIA

0.90ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 1559708732

Certificate GIA 1559708732

Diamond specifications and retailer prices

From $835 SGD
HK$5,100 HKD
As of November 1, 2026
Save $2,834 SGD (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,669 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.9ct natural heart diamond

This 0.9ct natural heart sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559708732. Listed at 9 retailers as of October 30, 2026, with prices from $835 to $3,669, a $2,834 spread on the same certified stone. NZ Jewellers lists it at $3,669. 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

0.90
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Pavilion angle39.46°
OriginNatural
Grading LabGIA
CertificateGIA 1559708732
Dimensions5.71 × 6.68 × 3.98 mm
L/W Ratio1.17
Key to symbols
Crystal, Needle, Feather
Top View
5.71 mm6.68 mm0.90 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559708732
Side View
Table 61.0%CrownGirdle: STK-THKPavilion 39.46°Culet: NoneDepth 59.6%

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: $3,669 SGD|Low: $835 SGD|High: $4,008 SGD|Avg: $1,797 SGD|-8.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2$835 SGD
Retailer 3$1,143 SGD
Retailer 7$1,200 SGD
Retailer 4$1,203 SGD
Retailer 8$1,214 SGD
Retailer 9$1,685 SGD
Retailer 5$2,146 SGD
Retailer 6$2,148 SGD
NZ Jewellers$3,669 SGD

29 data points across 9 retailers

9 retailers$835 SGD to $3,669 SGD

A
Cheapest Retailer
-
$835 SGD
HK$5,100 HKD
A
Retailer 2
-
$1,143 SGD
$894 USD
View
A
Retailer 3
-
$1,200 SGD
View
A
Retailer 4
-
$1,203 SGD
$941 USD
View
A
Retailer 5
-
$1,214 SGD
$950 USD
View
B+
Retailer 6
-
$1,685 SGD
A$2,028 AUD
View
B
Retailer 7
-
$2,146 SGD
£1,322 GBP
View
B
Retailer 8
-
$2,148 SGD
€1,600 EUR
View
Most Expensive
B
NZ Jewellers
491ff9fc-189c-4d00-b3e5-883fe4b3dbb6 · Oct 30
$3,669 SGD
$2,870 USD
View
8 more retailers have this diamond
Prices start from $835 SGDSave up to $2,834 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.

A
0.90ct Heart
$835 SGD