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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 $4,881 NZD
As of November 6, 2026
Save $1,396 NZD (22%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,278 NZD 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 $4,881 to $6,278, a $1,396 spread on the same certified stone. Jared lists it at $6,278. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,278 NZD|Low: $4,692 NZD|High: $7,143 NZD|Avg: $6,027 NZD|-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$4,881 NZD
Retailer 5$5,287 NZD
Retailer 10$5,471 NZD
Retailer 9$5,567 NZD
Retailer 2$5,653 NZD
Retailer 6$5,763 NZD
Retailer 3$6,079 NZD
Retailer 7$6,079 NZD
Retailer 8$6,151 NZD
Jared$6,278 NZD

43 data points across 10 retailers

10 retailers$4,881 NZD to $6,278 NZD

A
Cheapest Retailer
-
$4,881 NZD
Final sale: no returns
B+
Retailer 2
-
$5,287 NZD
View
B+
Retailer 3
-
$5,471 NZD
View
B+
Retailer 4
-
$5,567 NZD
View
B+
Retailer 5
-
$5,653 NZD
View
B+
Retailer 6
-
$5,763 NZD
View
B+
Retailer 7
-
$6,079 NZD
View
B+
Retailer 8
-
$6,079 NZD
View
B+
Retailer 9
-
$6,151 NZD
View
Most Expensive
B+
Jared
156794183 · Nov 6
$6,278 NZD
$3,480 USD
View
9 more retailers have this diamond
Prices start from $4,881 NZDSave up to $1,396 NZD

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
$4,881 NZD