CaratHunter
Plans
Marquise|Natural|GIA

1.03ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 1558431023

Certificate GIA 1558431023

Diamond specifications and retailer prices

From $4,169 NZD
As of October 31, 2026
Save $5,491 NZD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,660 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural marquise diamond

This 1.03ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558431023. Listed at 20 retailers as of October 31, 2026, with prices from $4,169 to $9,660, a $5,491 spread on the same certified stone. NZ Jewellers lists it at $9,660. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558431023
Dimensions10.04 × 5.28 × 3.37 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
10.04 mm5.28 mm1.03 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558431023
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.9%

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: Oct 31
Current: $9,660 NZD|Low: $4,158 NZD|High: $10,012 NZD|Avg: $6,061 NZD|-3.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 12$4,169 NZD
Retailer 7$4,964 NZD
Retailer 4$4,968 NZD
Retailer 15$4,970 NZD
Retailer 5$5,006 NZD
Retailer 2$5,377 NZD
Retailer 14$5,545 NZD
Retailer 8$5,729 NZD
Retailer 3$5,758 NZD
Retailer 6$5,801 NZD
Retailer 13$6,397 NZD
Retailer 10$6,489 NZD
Retailer 9$6,766 NZD
Retailer 11$9,270 NZD
NZ Jewellers$9,660 NZD

25 data points across 15 retailers

20 retailers$4,169 NZD to $9,660 NZD

A
Cheapest Retailer
-
$4,169 NZD
B+
Retailer 2
-
$4,964 NZD
View
A
Retailer 3
-
$4,968 NZD
View
A
Retailer 4
-
$4,970 NZD
View
B+
Retailer 5
-
$5,006 NZD
View
B+
Retailer 6
-
$5,377 NZD
View
Retailer 7
-
$5,545 NZD
View
Price last confirmed 42 days ago
Retailer 8
-
$5,545 NZD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$5,545 NZD
View
B+
Retailer 10
-
$5,729 NZD
View
B+
Retailer 11
-
$5,758 NZD
View
B+
Retailer 12
-
$5,801 NZD
View
Retailer 13
-
$5,922 NZD
View
Price last confirmed 31 days ago
Retailer 14
-
$6,397 NZD
View
Price last confirmed 44 days ago
B+
Retailer 15
-
$6,397 NZD
View
B
Retailer 16
-
$6,489 NZD
View
B+
Retailer 17
-
$6,766 NZD
View
B
Retailer 18
-
$9,270 NZD
View
Retailer 19
-
$9,660 NZD
View
Price last confirmed 43 days ago
Most Expensive
B
NZ Jewellers
4373f7b7-d4b0-48b8-a48e-58b472d3a21f · Nov 5
$9,660 NZD
$5,355 USD
View
19 more retailers have this diamond
Prices start from $4,169 NZDSave up to $5,491 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 Marquise
$4,169 NZD