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Heart|Natural|GIA

0.90ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 6542397714

Certificate GIA 6542397714

Diamond specifications and retailer prices

From $770 SGD
As of November 6, 2026
Save $1,151 SGD (60%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,710 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 6542397714. Listed at 13 retailers as of November 2, 2026, with a 149% 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
SymmetryVery Good
FluorescenceNone
Pavilion angle38.9°
OriginNatural
Grading LabGIA
CertificateGIA 6542397714
Dimensions5.71 × 6.75 × 4.03 mm
L/W Ratio1.18
Top View
5.71 mm6.75 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542397714
Side View
Table 58.0%CrownGirdle: MED-VTKPavilion 38.9°Culet: NoneDepth 59.7%

Caratlytics Score

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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: $1,116 SGD|Low: $770 SGD|High: $2,167 SGD|Avg: $1,310 SGD|-14.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 12$770 SGD
Retailer 10$969 SGD
Retailer 3$1,038 SGD
Retailer 6$1,079 SGD
Retailer 5$1,083 SGD
Retailer 11$1,083 SGD
Retailer 1$1,116 SGD
Retailer 4$1,346 SGD
Retailer 7$1,369 SGD
Retailer 8$1,537 SGD
Retailer 9$1,602 SGD
Retailer 2$1,921 SGD

37 data points across 12 retailers

13 retailers$770 SGD to $1,921 SGD

A
Cheapest Retailer
-
$770 SGD
A
Retailer 2
-
$969 SGD
View
Final sale: no returns
A
Retailer 3
-
$1,038 SGD
View
A
Retailer 4
-
$1,079 SGD
View
A
Retailer 5
-
$1,083 SGD
View
A
Retailer 6
-
$1,083 SGD
View
A
Retailer 7
-
$1,116 SGD
View
B+
Retailer 8
-
$1,346 SGD
View
B+
Retailer 9
-
$1,369 SGD
View
B+
Retailer 10
-
$1,537 SGD
View
B+
Retailer 11
-
$1,602 SGD
View
B+
Retailer 12
-
$1,921 SGD
View
Most Expensive
NZ Jewellers
96717b14-6037-4173-b8d9-9846d49afc09 · Sep 25
$3,710 SGD
$2,895 USD
View
Price last confirmed 42 days ago
12 more retailers have this diamond
Prices start from $770 SGDSave up to $1,151 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
$770 SGD