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Heart|Natural|GIA

0.90ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 7543281578

Certificate GIA 7543281578

Diamond specifications and retailer prices

From $1,653 SGD
HK$10,100 HKD
As of November 1, 2026
Save $2,101 SGD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,553 SGD 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7543281578. Listed at 18 retailers as of November 1, 2026, with a 127% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle39.9°
OriginNatural
Grading LabGIA
CertificateGIA 7543281578
Dimensions6.01 × 6.67 × 3.87 mm
L/W Ratio1.11
Girdle conditionFaceted
Top View
6.01 mm6.67 mm0.90 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7543281578
Side View
Table 57.0%CrownGirdle: THN-VTKPavilion 39.9°Culet: NoneDepth 58.0%

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: $2,154 SGD|Low: $1,620 SGD|High: $3,931 SGD|Avg: $2,518 SGD|-5.0%
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
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 10$1,653 SGD
Retailer 13$1,971 SGD
Retailer 15$1,978 SGD
Retailer 9$2,019 SGD
Retailer 3$2,058 SGD
Retailer 4$2,060 SGD
Retailer 1$2,154 SGD
Retailer 14$2,199 SGD
Retailer 6$2,338 SGD
Retailer 7$2,601 SGD
Retailer 11$2,720 SGD
Retailer 8$2,893 SGD
Retailer 16$2,987 SGD
Retailer 2$3,225 SGD
Retailer 5$3,356 SGD
Retailer 12$3,754 SGD

26 data points across 16 retailers

18 retailers$1,653 SGD to $3,754 SGD

A
Cheapest Retailer
-
$1,653 SGD
HK$10,100 HKD
A
Retailer 2
-
$1,971 SGD
€1,468 EUR
View
B+
Retailer 3
-
$1,978 SGD
$1,547 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,019 SGD
$1,579 USD
View
B+
Retailer 5
-
$2,058 SGD
$1,610 USD
View
B+
Retailer 6
-
$2,060 SGD
$1,611 USD
View
B+
Retailer 7
-
$2,154 SGD
£1,326 GBP
View
B+
Retailer 8
-
$2,199 SGD
$1,720 USD
View
Retailer 9
-
$2,338 SGD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
$2,601 SGD
View
B+
Retailer 11
-
$2,720 SGD
$2,128 USD
View
B+
Retailer 12
-
$2,774 SGD
A$3,338 AUD
View
Retailer 13
-
$2,893 SGD
A$3,481 AUD
View
Price last confirmed 27 days ago
B+
Retailer 14
-
$2,987 SGD
€2,225 EUR
View
B
Retailer 15
-
$3,225 SGD
ZAR 40,760 ZAR
View
Retailer 16
-
$3,356 SGD
$2,625 USD
View
Price last confirmed 9 days ago
B
Retailer 17
-
$3,754 SGD
£2,312 GBP
View
Most Expensive
NZ Jewellers
94b336de-3472-454b-94dc-00cd6d92205b · Sep 25
$5,553 SGD
$4,344 USD
View
Price last confirmed 37 days ago
17 more retailers have this diamond
Prices start from $1,653 SGDSave up to $2,101 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
$1,653 SGD