CaratHunter
Plans
Heart|Natural|GIA

1.03ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 1553251290

Certificate GIA 1553251290

Diamond specifications and retailer prices

From $3,788 NZD
As of November 4, 2026
Save $3,382 NZD (47%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,581 NZD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.03ct natural heart diamond

This 1.03ct natural heart sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553251290. Listed at 10 retailers as of November 4, 2026, with a 89% 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

1.03
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553251290
Dimensions6.89 × 5.76 × 4.19 mm
L/W Ratio1.20
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
6.89 mm5.76 mm1.03 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1553251290
Side View
Table 55.0%CrownGirdlePavilionCulet: NoneDepth 60.8%

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 4
Current: $5,096 NZD|Low: $3,473 NZD|High: $7,277 NZD|Avg: $4,900 NZD|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4$3,788 NZD
Retailer 5$4,104 NZD
Retailer 2$4,459 NZD
Retailer 1$5,096 NZD
Retailer 3$7,171 NZD

44 data points across 5 retailers

10 retailers$3,788 NZD to $7,171 NZD

A
Cheapest Retailer
-
$3,788 NZD
Final sale: no returns
Retailer 2
-
$4,104 NZD
View
Price last confirmed 29 days ago
Retailer 3
-
$4,104 NZD
View
Price last confirmed 29 days ago
Retailer 4
-
$4,293 NZD
View
Price last confirmed 36 days ago
B+
Retailer 5
-
$4,459 NZD
View
Retailer 6
-
$4,735 NZD
View
Price last confirmed 66 days ago
Retailer 7
-
$4,735 NZD
View
Price last confirmed 38 days ago
B+
Retailer 8
-
$5,096 NZD
View
B
Retailer 9
-
$7,171 NZD
View
Most Expensive
NZ Jewellers
e02b1e4b-e303-4e8c-8b89-58fab2390e37 · Sep 30
$8,581 NZD
$4,757 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from $3,788 NZDSave up to $3,382 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
1.03ct Heart
$3,788 NZD