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Heart|Natural|GIA

1.23ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6532310035

Certificate GIA 6532310035

Diamond specifications and retailer prices

From $1,863 USD
As of November 2, 2026
Save $2,733 USD (59%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,596 USD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532310035. Listed at 5 retailers as of November 2, 2026, with prices from $1,863 to $4,596, a $2,733 spread on the same certified stone. NZ Jewellers lists it at $4,596. 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

1.23
Carat
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.43°
Pavilion angle41.77°
OriginNatural
Grading LabGIA
CertificateGIA 6532310035
Dimensions6.39 × 7.53 × 4.55 mm
L/W Ratio1.18
Top View
6.39 mm7.53 mm1.23 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532310035
Side View
Table 59.0%Crown 36.43°GirdlePavilion 41.77°CuletDepth 60.4%

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 2
Current: $4,596 USD|Low: $1,863 USD|High: $4,700 USD|Avg: $2,609 USD|-2.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2$1,863 USD
Retailer 5$1,884 USD
Retailer 4$1,971 USD
Retailer 7$2,214 USD
Retailer 6$2,251 USD
Retailer 8$2,500 USD
Retailer 3$3,302 USD
NZ Jewellers$4,596 USD

26 data points across 8 retailers

5 retailers$1,863 USD to $4,596 USD

A
Cheapest Retailer
-
$1,863 USD
A
Retailer 2
-
$1,884 USD
View
A
Retailer 3
-
$1,971 USD
View
B
Retailer 4
-
$3,302 USD
View
Most Expensive
B
NZ Jewellers
7fd7a8d8-743f-475e-ac9f-8c92ae388d23 · Nov 3
$4,596 USD
View
4 more retailers have this diamond
Prices start from $1,863 USDSave up to $2,733 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
1.23ct Heart
$1,863 USD