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Heart|Natural|GIA

1.21ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6531598937

Certificate GIA 6531598937

Diamond specifications and retailer prices

From $3,468 SGD
As of November 6, 2026
Save $992 SGD (22%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,460 SGD at Jared · As of November 6, 2026
View at Jared

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic 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 6531598937. Listed at 10 retailers as of November 6, 2026, with prices from $3,468 to $4,460, a $992 spread on the same certified stone. Jared lists it at $4,460. 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

1.21
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6531598937
Dimensions6.54 × 7.41 × 4.38 mm
L/W Ratio1.13
Top View
6.54 mm7.41 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6531598937
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.1%

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: $4,460 SGD|Low: $3,333 SGD|High: $5,075 SGD|Avg: $4,282 SGD|-9.1%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4$3,468 SGD
Retailer 5$3,756 SGD
Retailer 10$3,887 SGD
Retailer 9$3,955 SGD
Retailer 2$4,017 SGD
Retailer 6$4,095 SGD
Retailer 3$4,319 SGD
Retailer 7$4,319 SGD
Retailer 8$4,370 SGD
Jared$4,460 SGD

43 data points across 10 retailers

10 retailers$3,468 SGD to $4,460 SGD

A
Cheapest Retailer
-
$3,468 SGD
Final sale: no returns
B+
Retailer 2
-
$3,756 SGD
View
B+
Retailer 3
-
$3,887 SGD
View
B+
Retailer 4
-
$3,955 SGD
View
B+
Retailer 5
-
$4,017 SGD
View
B+
Retailer 6
-
$4,095 SGD
View
B+
Retailer 7
-
$4,319 SGD
View
B+
Retailer 8
-
$4,319 SGD
View
B+
Retailer 9
-
$4,370 SGD
View
Most Expensive
B+
Jared
156794183 · Nov 6
$4,460 SGD
$3,480 USD
View
9 more retailers have this diamond
Prices start from $3,468 SGDSave up to $992 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
1.21ct Heart
$3,468 SGD