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Heart|Natural|GIA

1.30ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6545763135

Certificate GIA 6545763135

Diamond specifications and retailer prices

From $2,995 SGD
As of November 3, 2026
Save $2,581 SGD (46%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,654 SGD at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.3ct natural heart diamond

This 1.3ct natural heart sits in the one-and-a-quarter to one-and-a-half 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 6545763135. Listed at 10 retailers as of November 2, 2026, with a 86% 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

1.30
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle41.77°
Pavilion angle40.66°
OriginNatural
Grading LabGIA
CertificateGIA 6545763135
Dimensions6.26 × 7.35 × 4.54 mm
L/W Ratio1.17
Top View
6.26 mm7.35 mm1.30 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6545763135
Side View
Table 62.0%Crown 41.77°GirdlePavilion 40.66°CuletDepth 61.8%

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 3
Current: $3,185 SGD|Low: $2,877 SGD|High: $5,643 SGD|Avg: $3,836 SGD|+0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 4, 2026
Retailer 2$2,995 SGD
Retailer 3$3,104 SGD
Retailer 1$3,185 SGD
Retailer 5$3,918 SGD
Retailer 4$5,576 SGD

41 data points across 5 retailers

10 retailers$2,995 SGD to $5,576 SGD

A
Cheapest Retailer
-
$2,995 SGD
A
Retailer 2
-
$3,104 SGD
View
Retailer 3
-
$3,182 SGD
View
Price last confirmed 45 days ago
Retailer 4
-
$3,182 SGD
View
Price last confirmed 29 days ago
A
Retailer 5
-
$3,185 SGD
View
Retailer 6
-
$3,330 SGD
View
Price last confirmed 36 days ago
Retailer 7
-
$3,918 SGD
View
Price last confirmed 30 days ago
B+
Retailer 8
-
$5,576 SGD
View
Retailer 9
-
$6,654 SGD
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
736ffe81-7f74-4a02-8e83-7d04e610c633 · Sep 20
$6,654 SGD
$5,192 USD
View
Price last confirmed 46 days ago
9 more retailers have this diamond
Prices start from $2,995 SGDSave up to $2,581 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
1.30ct Heart
$2,995 SGD