Heart|Natural|GIA

0.90ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 1543173708

Certificate GIA 1543173708

Diamond specifications and retailer prices

From $666 USD
HK$5,200 HKD
As of November 1, 2026
Save $979 USD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,077 USD 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
Color
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: $924 USD|Low: $666 USD|High: $1,802 USD|Avg: $1,137 USD|-12.8%
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 1, 2026
Retailer 6$666 USD
Retailer 10$828 USD
Retailer 1$924 USD
Retailer 8$925 USD
Retailer 9$930 USD
Retailer 12$940 USD
Retailer 3$946 USD
Retailer 4$1,123 USD
Retailer 2$1,129 USD
Retailer 11$1,349 USD
Retailer 5$1,351 USD
Retailer 13$1,416 USD
Retailer 7$1,645 USD

33 data points across 13 retailers

14 retailers$666 USD to $1,645 USD

A
Cheapest Retailer
-
$666 USD
HK$5,200 HKD
B+
Retailer 2
-
$828 USD
View
Final sale: no returns
A
Retailer 3
-
$924 USD
View
A
Retailer 4
-
$925 USD
£729 GBP
View
A
Retailer 5
-
$930 USD
View
A
Retailer 6
-
$940 USD
View
Retailer 7
-
$946 USD
SGD 1,279 SGD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$1,123 USD
SGD 1,518 SGD
View
B+
Retailer 9
-
$1,129 USD
View
B+
Retailer 10
-
$1,349 USD
ZAR 21,789 ZAR
View
Retailer 11
-
$1,351 USD
A$2,078 AUD
View
Price last confirmed 27 days ago
Retailer 12
-
$1,416 USD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$1,645 USD
£1,295 GBP
View
Most Expensive
NZ Jewellers
49809009-c699-407d-b902-f73808d4e2c6 · Sep 25
$3,077 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $666 USDSave up to $979 USD

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
$666 USD