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Marquise|Natural|GIA

1.03ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 1558431023

Certificate GIA 1558431023

Diamond specifications and retailer prices

From $2,311 USD
As of October 31, 2026
Save $3,044 USD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,355 USD 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 $2,311 to $5,355, a $3,044 spread on the same certified stone. NZ Jewellers lists it at $5,355. 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
Color
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: $5,355 USD|Low: $2,305 USD|High: $5,550 USD|Avg: $3,360 USD|-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$2,311 USD
Retailer 7$2,752 USD
Retailer 4$2,754 USD
Retailer 15$2,755 USD
Retailer 5$2,775 USD
Retailer 2$2,981 USD
Retailer 14$3,074 USD
Retailer 8$3,176 USD
Retailer 3$3,192 USD
Retailer 6$3,216 USD
Retailer 13$3,546 USD
Retailer 10$3,597 USD
Retailer 9$3,751 USD
Retailer 11$5,139 USD
NZ Jewellers$5,355 USD

25 data points across 15 retailers

20 retailers$2,311 USD to $5,355 USD

A
Cheapest Retailer
-
$2,311 USD
B+
Retailer 2
-
$2,752 USD
View
A
Retailer 3
-
$2,754 USD
View
A
Retailer 4
-
$2,755 USD
View
B+
Retailer 5
-
$2,775 USD
View
B+
Retailer 6
-
$2,981 USD
View
Retailer 7
-
$3,074 USD
View
Price last confirmed 41 days ago
Retailer 8
-
$3,074 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$3,074 USD
View
B+
Retailer 10
-
$3,176 USD
View
B+
Retailer 11
-
$3,192 USD
View
B+
Retailer 12
-
$3,216 USD
View
Retailer 13
-
$3,283 USD
View
Price last confirmed 30 days ago
Retailer 14
-
$3,546 USD
View
Price last confirmed 43 days ago
B+
Retailer 15
-
$3,546 USD
View
B
Retailer 16
-
$3,597 USD
View
B+
Retailer 17
-
$3,751 USD
View
B
Retailer 18
-
$5,139 USD
View
Retailer 19
-
$5,355 USD
View
Price last confirmed 42 days ago
Most Expensive
B
NZ Jewellers
4373f7b7-d4b0-48b8-a48e-58b472d3a21f · Nov 5
$5,355 USD
View
19 more retailers have this diamond
Prices start from $2,311 USDSave up to $3,044 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
1.03ct Marquise
$2,311 USD