CaratHunter
Plans
Heart|Natural|GIA

1.53ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 1543950076

Certificate GIA 1543950076

Diamond specifications and retailer prices

From $4,461 NZD
As of November 6, 2026
Save $5,257 NZD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $10,861 NZD at NZ Jewellers · As of September 20, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1543950076. Listed at 11 retailers as of November 4, 2026, with a 118% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1543950076
Dimensions7.96 × 7.05 × 4.54 mm
L/W Ratio1.13
Girdle conditionThick
Top View
7.96 mm7.05 mm1.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543950076
Side View
Table 58.0%CrownGirdle: MediumPavilionCulet: NoneDepth 57.0%

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: $4,461 NZD|Low: $4,461 NZD|High: $10,136 NZD|Avg: $6,310 NZD|-4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1$4,461 NZD
Retailer 7$5,172 NZD
Retailer 8$5,365 NZD
Retailer 6$5,646 NZD
Retailer 3$6,029 NZD
Retailer 9$6,085 NZD
Retailer 2$6,784 NZD
Retailer 4$7,111 NZD
Retailer 5$9,718 NZD

34 data points across 9 retailers

11 retailers$4,461 NZD to $9,718 NZD

A
Cheapest Retailer
-
$4,461 NZD
A
Retailer 2
-
$5,172 NZD
View
A
Retailer 3
-
$5,365 NZD
View
A
Retailer 4
-
$5,646 NZD
View
A
Retailer 5
-
$6,029 NZD
View
B+
Retailer 6
-
$6,085 NZD
View
B+
Retailer 7
-
$6,784 NZD
View
B+
Retailer 8
-
$7,111 NZD
View
B
Retailer 9
-
$9,718 NZD
View
Retailer 10
-
$10,436 NZD
View
Price last confirmed 31 days ago
Most Expensive
NZ Jewellers
01749aa1-057d-4017-871f-461a30d1f7d5 · Sep 20
$10,861 NZD
$6,021 USD
View
Price last confirmed 46 days ago
10 more retailers have this diamond
Prices start from $4,461 NZDSave up to $5,257 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
1.53ct Heart
$4,461 NZD