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Heart|Natural|GIA

0.90ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 7542212851

Certificate GIA 7542212851

Diamond specifications and retailer prices

From $1,325 SGD
HK$8,100 HKD
As of November 1, 2026
Save $835 SGD (39%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,679 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 7542212851. Listed at 14 retailers as of October 31, 2026, with a 63% 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
FluorescenceFaint
Pavilion angle42.2°
OriginNatural
Grading LabGIA
CertificateGIA 7542212851
Dimensions6.06 × 6.47 × 4.08 mm
L/W Ratio1.07
Girdle conditionFaceted
Top View
6.06 mm6.47 mm0.90 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7542212851
Side View
Table 62.0%CrownGirdle: MED-VTKPavilion 42.2°Culet: NoneDepth 63.1%

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: $1,693 SGD|Low: $1,309 SGD|High: $3,397 SGD|Avg: $2,100 SGD|-4.2%
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
November 1, 2026
Retailer 8$1,325 SGD
Retailer 10$1,611 SGD
Retailer 15$1,659 SGD
Retailer 1$1,693 SGD
Retailer 9$1,720 SGD
Retailer 12$1,739 SGD
Retailer 11$1,751 SGD
Retailer 14$1,898 SGD
Retailer 3$1,930 SGD
Retailer 2$2,161 SGD
Retailer 6$2,347 SGD
Retailer 4$2,486 SGD
Retailer 7$2,596 SGD
Retailer 13$2,732 SGD
Retailer 5$3,327 SGD

32 data points across 15 retailers

14 retailers$1,325 SGD to $2,161 SGD

A
Cheapest Retailer
-
$1,325 SGD
HK$8,100 HKD
A
Retailer 2
-
$1,611 SGD
€1,200 EUR
View
A
Retailer 3
-
$1,659 SGD
$1,298 USD
View
Final sale: no returns
A
Retailer 4
-
$1,693 SGD
$1,324 USD
View
A
Retailer 5
-
$1,720 SGD
£1,059 GBP
View
A
Retailer 6
-
$1,739 SGD
$1,360 USD
View
A
Retailer 7
-
$1,751 SGD
$1,370 USD
View
Retailer 8
-
$1,898 SGD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$2,161 SGD
View
Retailer 10
-
$2,347 SGD
A$2,825 AUD
View
Price last confirmed 27 days ago
Retailer 11
-
$2,596 SGD
ZAR 32,804 ZAR
View
Price last confirmed 28 days ago
Retailer 12
-
$2,732 SGD
$2,137 USD
View
Price last confirmed 9 days ago
Retailer 13
-
$3,327 SGD
£2,049 GBP
View
Price last confirmed 25 days ago
Most Expensive
NZ Jewellers
6cf700fb-68c7-4599-85e5-e44d1bfc0231 · Sep 25
$4,679 SGD
$3,660 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $1,325 SGDSave up to $835 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
$1,325 SGD