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Heart|Natural|GIA

1.21ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 6542139244

Certificate GIA 6542139244

Diamond specifications and retailer prices

From $2,758 SGD
As of November 6, 2026
Save $3,417 SGD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,741 SGD at NZ Jewellers · As of September 25, 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 D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542139244. Listed at 16 retailers as of November 4, 2026, with a 124% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542139244
Dimensions6.43 × 7.26 × 4.15 mm
L/W Ratio1.13
Top View
6.43 mm7.26 mm1.21 ctD / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542139244
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,758 SGD|Low: $2,589 SGD|High: $6,373 SGD|Avg: $3,782 SGD|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 1$2,758 SGD
Retailer 3$2,935 SGD
Retailer 9$3,274 SGD
Retailer 4$3,317 SGD
Retailer 13$3,549 SGD
Retailer 11$3,621 SGD
Retailer 12$3,885 SGD
Retailer 6$3,919 SGD
Retailer 10$3,959 SGD
Retailer 5$4,027 SGD
Retailer 2$4,229 SGD
Retailer 7$4,519 SGD
Retailer 8$6,175 SGD

39 data points across 13 retailers

16 retailers$2,758 SGD to $6,175 SGD

A
Cheapest Retailer
-
$2,758 SGD
A
Retailer 2
-
$2,935 SGD
View
Final sale: no returns
B+
Retailer 3
-
$3,274 SGD
View
B+
Retailer 4
-
$3,317 SGD
View
B+
Retailer 5
-
$3,549 SGD
View
B+
Retailer 6
-
$3,621 SGD
View
Retailer 7
-
$3,703 SGD
View
Price last confirmed 42 days ago
B+
Retailer 8
-
$3,885 SGD
View
B+
Retailer 9
-
$3,919 SGD
View
B+
Retailer 10
-
$3,959 SGD
View
Retailer 11
-
$4,027 SGD
View
Price last confirmed 30 days ago
B
Retailer 12
-
$4,229 SGD
View
Retailer 13
-
$4,272 SGD
View
Price last confirmed 43 days ago
B+
Retailer 14
-
$4,519 SGD
View
B
Retailer 15
-
$6,175 SGD
View
Most Expensive
NZ Jewellers
c27b58b6-618b-44f8-bf85-af67dd7fc74f · Sep 25
$7,741 SGD
$6,040 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from $2,758 SGDSave up to $3,417 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
$2,758 SGD