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Heart|Natural|GIA

0.90ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 7541377009

Certificate GIA 7541377009

Diamond specifications and retailer prices

From $918 SGD
As of November 6, 2026
Save $1,460 SGD (61%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,621 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7541377009. Listed at 11 retailers as of November 4, 2026, with a 159% 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.2°
OriginNatural
Grading LabGIA
CertificateGIA 7541377009
Dimensions5.71 × 6.63 × 3.95 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
5.71 mm6.63 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7541377009
Side View
Table 58.0%CrownGirdle: STK-VTKPavilion 38.2°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,256 SGD|Low: $918 SGD|High: $2,726 SGD|Avg: $1,561 SGD|-7.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 10$918 SGD
Retailer 9$1,200 SGD
Retailer 2$1,218 SGD
Retailer 1$1,256 SGD
Retailer 3$1,268 SGD
Retailer 7$1,352 SGD
Retailer 4$1,542 SGD
Retailer 8$1,867 SGD
Retailer 5$1,903 SGD
Retailer 6$2,377 SGD

37 data points across 10 retailers

11 retailers$918 SGD to $2,377 SGD

A
Cheapest Retailer
-
$918 SGD
A
Retailer 2
-
$1,200 SGD
View
Final sale: no returns
A
Retailer 3
-
$1,218 SGD
View
A
Retailer 4
-
$1,256 SGD
View
A
Retailer 5
-
$1,268 SGD
View
B+
Retailer 6
-
$1,352 SGD
View
B+
Retailer 7
-
$1,542 SGD
View
B+
Retailer 8
-
$1,867 SGD
View
B+
Retailer 9
-
$1,903 SGD
View
B
Retailer 10
-
$2,377 SGD
View
Most Expensive
NZ Jewellers
0ead3968-d841-4e00-933a-4e78b6fd3ba9 · Sep 25
$3,621 SGD
$2,825 USD
View
Price last confirmed 42 days ago
10 more retailers have this diamond
Prices start from $918 SGDSave up to $1,460 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
$918 SGD