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Heart|Natural|GIA

1.20ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 5231766973

Certificate GIA 5231766973

Diamond specifications and retailer prices

From $1,370 USD
As of November 5, 2026
Save $1,977 USD (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,347 USD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231766973. Listed at 6 retailers as of November 3, 2026, with prices from $1,370 to $3,347, a $1,977 spread on the same certified stone. NZ Jewellers lists it at $3,347. 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

1.20
Carat
K
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.91°
Pavilion angle41.33°
OriginNatural
Grading LabGIA
CertificateGIA 5231766973
Dimensions6.35 × 7.26 × 4.50 mm
L/W Ratio1.14
Top View
6.35 mm7.26 mm1.20 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5231766973
Side View
Table 59.0%Crown 38.91°GirdlePavilion 41.33°CuletDepth 61.9%

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: $3,347 USD|Low: $1,370 USD|High: $3,401 USD|Avg: $1,888 USD|-1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4$1,370 USD
Retailer 5$1,372 USD
Retailer 2$1,411 USD
Retailer 6$1,436 USD
Retailer 7$1,675 USD
Retailer 8$1,731 USD
Retailer 9$1,939 USD
Retailer 3$2,513 USD
NZ Jewellers$3,347 USD

27 data points across 9 retailers

6 retailers$1,370 USD to $3,347 USD

A
Cheapest Retailer
-
$1,370 USD
A
Retailer 2
-
$1,372 USD
View
A
Retailer 3
-
$1,411 USD
View
A
Retailer 4
-
$1,436 USD
View
B
Retailer 5
-
$2,513 USD
View
Most Expensive
B
NZ Jewellers
6ef88574-af0f-459b-a711-ebfd9ecd2e29 · Nov 3
$3,347 USD
View
5 more retailers have this diamond
Prices start from $1,370 USDSave up to $1,977 USD

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
1.20ct Heart
$1,370 USD