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Heart|Natural|GIA

1.23ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6532310035

Certificate GIA 6532310035

Diamond specifications and retailer prices

From $2,388 SGD
As of November 2, 2026
Save $3,503 SGD (59%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $5,890 SGD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532310035. Listed at 5 retailers as of November 2, 2026, with prices from $2,388 to $5,890, a $3,503 spread on the same certified stone. NZ Jewellers lists it at $5,890. 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

1.23
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.43°
Pavilion angle41.77°
OriginNatural
Grading LabGIA
CertificateGIA 6532310035
Dimensions6.39 × 7.53 × 4.55 mm
L/W Ratio1.18
Top View
6.39 mm7.53 mm1.23 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532310035
Side View
Table 59.0%Crown 36.43°GirdlePavilion 41.77°CuletDepth 60.4%

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 2
Current: $5,890 SGD|Low: $2,388 SGD|High: $6,024 SGD|Avg: $3,344 SGD|-2.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2$2,388 SGD
Retailer 5$2,415 SGD
Retailer 4$2,526 SGD
Retailer 7$2,837 SGD
Retailer 6$2,885 SGD
Retailer 8$3,204 SGD
Retailer 3$4,232 SGD
NZ Jewellers$5,890 SGD

26 data points across 8 retailers

5 retailers$2,388 SGD to $5,890 SGD

A
Cheapest Retailer
-
$2,388 SGD
A
Retailer 2
-
$2,415 SGD
View
A
Retailer 3
-
$2,526 SGD
View
B
Retailer 4
-
$4,232 SGD
View
Most Expensive
B
NZ Jewellers
7fd7a8d8-743f-475e-ac9f-8c92ae388d23 · Nov 3
$5,890 SGD
$4,596 USD
View
4 more retailers have this diamond
Prices start from $2,388 SGDSave up to $3,503 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
1.23ct Heart
$2,388 SGD