Heart|Natural|GIA

0.90ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 7531907309

Certificate GIA 7531907309

Diamond specifications and retailer prices

From $1,062 USD
HK$8,300 HKD
As of November 1, 2026
Save $821 USD (44%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,632 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 7531907309. Listed at 16 retailers as of October 31, 2026, with a 77% 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
SymmetryExcellent
FluorescenceFaint
Pavilion angle39.7°
OriginNatural
Grading LabGIA
CertificateGIA 7531907309
Dimensions5.97 × 6.97 × 3.84 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
5.97 mm6.97 mm0.90 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7531907309
Side View
Table 59.0%CrownGirdle: MED-VTKPavilion 39.7°Culet: NoneDepth 55.1%

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: $1,062 USD|Low: $1,037 USD|High: $2,637 USD|Avg: $1,675 USD|-5.7%
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 1$1,062 USD
Retailer 10$1,288 USD
Retailer 16$1,309 USD
Retailer 13$1,371 USD
Retailer 9$1,381 USD
Retailer 12$1,381 USD
Retailer 11$1,410 USD
Retailer 15$1,507 USD
Retailer 4$1,520 USD
Retailer 6$1,584 USD
Retailer 2$1,723 USD
Retailer 8$1,795 USD
Retailer 5$1,851 USD
Retailer 7$2,014 USD
Retailer 14$2,171 USD
Retailer 3$2,623 USD

33 data points across 16 retailers

16 retailers$1,062 USD to $1,884 USD

A
Cheapest Retailer
-
$1,062 USD
HK$8,300 HKD
A
Retailer 2
-
$1,288 USD
€1,227 EUR
View
A
Retailer 3
-
$1,309 USD
View
Final sale: no returns
A
Retailer 4
-
$1,371 USD
View
A
Retailer 5
-
$1,381 USD
£1,087 GBP
View
A
Retailer 6
-
$1,381 USD
View
A
Retailer 7
-
$1,410 USD
View
Retailer 8
-
$1,507 USD
SGD 2,037 SGD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$1,723 USD
SGD 2,328 SGD
View
Retailer 10
-
$1,795 USD
£1,414 GBP
View
Price last confirmed 35 days ago
Retailer 11
-
$1,851 USD
A$2,848 AUD
View
Price last confirmed 26 days ago
B+
Retailer 12
-
$1,884 USD
A$2,898 AUD
View
Retailer 13
-
$2,014 USD
ZAR 32,530 ZAR
View
Price last confirmed 28 days ago
Retailer 14
-
$2,171 USD
View
Price last confirmed 9 days ago
Retailer 15
-
$2,623 USD
£2,065 GBP
View
Price last confirmed 24 days ago
Most Expensive
NZ Jewellers
aeca36d5-e04d-44db-85b9-434e6eec66ff · Sep 25
$3,632 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from $1,062 USDSave up to $821 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
$1,062 USD