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Heart|Natural|GIA

1.21ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 5563084982

Certificate GIA 5563084982

Diamond specifications and retailer prices

From $2,831 SGD
As of November 5, 2026
Save $2,536 SGD (47%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,905 SGD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5563084982. Listed at 10 retailers as of November 2, 2026, with a 90% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle36.88°
OriginNatural
Grading LabGIA
CertificateGIA 5563084982
Dimensions6.70 × 7.27 × 4.17 mm
L/W Ratio1.09
Key to symbols
Twinning Wisp, Crystal, Needle
Top View
6.70 mm7.27 mm1.21 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5563084982
Side View
Table 61.0%CrownGirdle: THK-VTKPavilion 36.88°Culet: NoneDepth 57.3%

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 5
Current: $3,836 SGD|Low: $2,716 SGD|High: $5,953 SGD|Avg: $3,975 SGD|-6.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 3$2,718 SGD
Retailer 6$2,831 SGD
Retailer 2$3,134 SGD
Retailer 4$3,621 SGD
Retailer 1$3,836 SGD
Retailer 7$4,669 SGD
Retailer 5$5,367 SGD

37 data points across 7 retailers

10 retailers$2,831 SGD to $5,367 SGD

Retailer 1
-
$2,718 SGD
Price last confirmed 3 days ago
A
Retailer 2
-
$2,831 SGD
View
B+
Retailer 3
-
$3,134 SGD
View
Retailer 4
-
$3,303 SGD
View
Price last confirmed 37 days ago
Retailer 5
-
$3,455 SGD
View
Price last confirmed 37 days ago
B+
Retailer 6
-
$3,621 SGD
View
B+
Retailer 7
-
$3,836 SGD
View
B
Retailer 8
-
$4,669 SGD
View
B
Retailer 9
-
$5,367 SGD
View
Most Expensive
NZ Jewellers
7dc53ffb-fc5a-4ad7-9fa2-10cac034a736 · Sep 30
$6,905 SGD
$5,388 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from $2,831 SGDSave up to $2,536 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
$2,831 SGD