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 €2,070 EUR
As of October 31, 2026
Save €2,726 EUR (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €4,796 EUR 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 €2,070 to €4,796, a €2,726 spread on the same certified stone. NZ Jewellers lists it at €4,796. 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: €4,796 EUR|Low: €2,064 EUR|High: €4,971 EUR|Avg: €3,009 EUR|-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€2,070 EUR
Retailer 7€2,465 EUR
Retailer 4€2,467 EUR
Retailer 15€2,468 EUR
Retailer 5€2,485 EUR
Retailer 2€2,670 EUR
Retailer 14€2,753 EUR
Retailer 8€2,845 EUR
Retailer 3€2,859 EUR
Retailer 6€2,880 EUR
Retailer 13€3,176 EUR
Retailer 10€3,222 EUR
Retailer 9€3,360 EUR
Retailer 11€4,603 EUR
NZ Jewellers€4,796 EUR

25 data points across 15 retailers

20 retailers€2,070 EUR to €4,796 EUR

A
Cheapest Retailer
-
€2,070 EUR
B+
Retailer 2
-
€2,465 EUR
View
A
Retailer 3
-
€2,467 EUR
View
A
Retailer 4
-
€2,468 EUR
View
B+
Retailer 5
-
€2,485 EUR
View
B+
Retailer 6
-
€2,670 EUR
View
Retailer 7
-
€2,753 EUR
View
Price last confirmed 42 days ago
Retailer 8
-
€2,753 EUR
View
Price last confirmed 9 days ago
B+
Retailer 9
-
€2,753 EUR
View
B+
Retailer 10
-
€2,845 EUR
View
B+
Retailer 11
-
€2,859 EUR
View
B+
Retailer 12
-
€2,880 EUR
View
Retailer 13
-
€2,940 EUR
View
Price last confirmed 31 days ago
Retailer 14
-
€3,176 EUR
View
Price last confirmed 44 days ago
B+
Retailer 15
-
€3,176 EUR
View
B
Retailer 16
-
€3,222 EUR
View
B+
Retailer 17
-
€3,360 EUR
View
B
Retailer 18
-
€4,603 EUR
View
Retailer 19
-
€4,796 EUR
View
Price last confirmed 43 days ago
Most Expensive
B
NZ Jewellers
4373f7b7-d4b0-48b8-a48e-58b472d3a21f · Nov 5
€4,796 EUR
$5,355 USD
View
19 more retailers have this diamond
Prices start from €2,070 EURSave up to €2,726 EUR

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
€2,070 EUR