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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 $1,293 USD
HK$10,100 HKD
As of November 1, 2026
Save $1,643 USD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,344 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 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
Color
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: $1,579 USD|Low: $1,267 USD|High: $3,075 USD|Avg: $1,971 USD|-3.2%
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 1, 2026
Retailer 9$1,293 USD
Retailer 12$1,542 USD
Retailer 15$1,547 USD
Retailer 1$1,579 USD
Retailer 3$1,610 USD
Retailer 4$1,611 USD
Retailer 13$1,685 USD
Retailer 14$1,720 USD
Retailer 6$1,829 USD
Retailer 7$2,034 USD
Retailer 10$2,128 USD
Retailer 8$2,263 USD
Retailer 16$2,336 USD
Retailer 2$2,523 USD
Retailer 5$2,625 USD
Retailer 11$2,936 USD

26 data points across 16 retailers

18 retailers$1,293 USD to $2,936 USD

A
Cheapest Retailer
-
$1,293 USD
HK$10,100 HKD
A
Retailer 2
-
$1,542 USD
€1,468 EUR
View
B+
Retailer 3
-
$1,547 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,579 USD
View
B+
Retailer 5
-
$1,610 USD
View
B+
Retailer 6
-
$1,611 USD
View
B+
Retailer 7
-
$1,685 USD
£1,326 GBP
View
B+
Retailer 8
-
$1,720 USD
View
Retailer 9
-
$1,829 USD
SGD 2,471 SGD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$2,034 USD
SGD 2,749 SGD
View
B+
Retailer 11
-
$2,128 USD
View
B+
Retailer 12
-
$2,170 USD
A$3,338 AUD
View
Retailer 13
-
$2,263 USD
A$3,481 AUD
View
Price last confirmed 27 days ago
B+
Retailer 14
-
$2,336 USD
€2,225 EUR
View
B
Retailer 15
-
$2,523 USD
ZAR 40,760 ZAR
View
Retailer 16
-
$2,625 USD
View
Price last confirmed 9 days ago
B
Retailer 17
-
$2,936 USD
£2,312 GBP
View
Most Expensive
NZ Jewellers
94b336de-3472-454b-94dc-00cd6d92205b · Sep 25
$4,344 USD
View
Price last confirmed 37 days ago
17 more retailers have this diamond
Prices start from $1,293 USDSave up to $1,643 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
$1,293 USD