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Heart|Natural|GIA

0.90ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 1543173708

Certificate GIA 1543173708

Diamond specifications and retailer prices

From $1,183 NZD
HK$5,200 HKD
As of November 1, 2026
Save $1,740 NZD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,469 NZD at NZ Jewellers · As of September 25, 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 1543173708. Listed at 14 retailers as of November 1, 2026, with a 147% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 1543173708
Dimensions5.59 × 6.58 × 4.15 mm
L/W Ratio1.18
Girdle conditionFaceted
Top View
5.59 mm6.58 mm0.90 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1543173708
Side View
Table 55.0%CrownGirdle: STK-VTKPavilion 40.2°Culet: NoneDepth 63.0%

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: $1,645 NZD|Low: $1,183 NZD|High: $3,203 NZD|Avg: $2,020 NZD|-14.6%
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
November 2, 2026
Retailer 7$1,183 NZD
Retailer 10$1,472 NZD
Retailer 6$1,642 NZD
Retailer 1$1,645 NZD
Retailer 9$1,653 NZD
Retailer 12$1,671 NZD
Retailer 3$1,682 NZD
Retailer 4$1,996 NZD
Retailer 2$2,007 NZD
Retailer 11$2,397 NZD
Retailer 5$2,400 NZD
Retailer 13$2,516 NZD
Retailer 8$2,923 NZD

34 data points across 13 retailers

14 retailers$1,183 NZD to $2,923 NZD

A
Cheapest Retailer
-
$1,183 NZD
HK$5,200 HKD
B+
Retailer 2
-
$1,472 NZD
$828 USD
View
Final sale: no returns
A
Retailer 3
-
$1,642 NZD
$924 USD
View
A
Retailer 4
-
$1,645 NZD
£729 GBP
View
A
Retailer 5
-
$1,653 NZD
$930 USD
View
A
Retailer 6
-
$1,671 NZD
$940 USD
View
Retailer 7
-
$1,682 NZD
SGD 1,279 SGD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
$1,996 NZD
SGD 1,518 SGD
View
B+
Retailer 9
-
$2,007 NZD
$1,129 USD
View
B+
Retailer 10
-
$2,397 NZD
ZAR 21,789 ZAR
View
Retailer 11
-
$2,400 NZD
A$2,078 AUD
View
Price last confirmed 28 days ago
Retailer 12
-
$2,516 NZD
$1,416 USD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
$2,923 NZD
£1,295 GBP
View
Most Expensive
NZ Jewellers
49809009-c699-407d-b902-f73808d4e2c6 · Sep 25
$5,469 NZD
$3,077 USD
View
Price last confirmed 38 days ago
13 more retailers have this diamond
Prices start from $1,183 NZDSave up to $1,740 NZD

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
$1,183 NZD