Heart|Natural|GIA

1.53ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6545588686

Certificate GIA 6545588686

Diamond specifications and retailer prices

From $3,646 USD
£2,871 GBP
As of November 1, 2026
Save $2,866 USD (44%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,512 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.53ct natural heart diamond

This 1.53ct natural heart sits in the one-and-a-half to two 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 6545588686. Listed at 6 retailers as of October 30, 2026, with prices from $3,646 to $6,512, a $2,866 spread on the same certified stone. NZ Jewellers lists it at $6,512. 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

1.53
Carat
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.19°
Pavilion angle41.59°
OriginNatural
Grading LabGIA
CertificateGIA 6545588686
Dimensions6.98 × 8.11 × 4.71 mm
L/W Ratio1.16
Top View
6.98 mm8.11 mm1.53 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545588686
Side View
Table 62.0%Crown 34.19°Girdle: MED-THKPavilion 41.59°Culet: NoneDepth 58.1%

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 1
Current: $6,512 USD|Low: $3,478 USD|High: $6,644 USD|Avg: $4,591 USD|-2.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7$3,478 USD
Retailer 3$3,646 USD
Retailer 2$3,738 USD
Retailer 5$3,884 USD
Retailer 6$3,960 USD
Retailer 8$4,303 USD
Retailer 9$4,555 USD
Retailer 4$6,251 USD
NZ Jewellers$6,512 USD

29 data points across 9 retailers

6 retailers$3,646 USD to $6,512 USD

A
Cheapest Retailer
-
$3,646 USD
£2,871 GBP
A
Retailer 2
-
$3,738 USD
View
A
Retailer 3
-
$3,884 USD
View
A
Retailer 4
-
$3,960 USD
View
B+
Retailer 5
-
$6,251 USD
£4,922 GBP
View
Most Expensive
B
NZ Jewellers
0c94e780-c29f-4b52-9932-ef9750c9ded8 · Oct 30
$6,512 USD
View
5 more retailers have this diamond
Prices start from $3,646 USDSave up to $2,866 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
1.53ct Heart
$3,646 USD