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Marquise|Natural|GIA

1.03ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2185570589

Certificate GIA 2185570589

Diamond specifications and retailer prices

From $9,254 NZD
As of November 6, 2026
Save $5,882 NZD (39%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $15,136 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct natural marquise diamond

This 1.03ct natural marquise sits in the classic one-carat band, graded I 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 2185570589. Listed at 5 retailers as of November 4, 2026, with prices from $9,254 to $15,136, a $5,882 spread on the same certified stone. MOH London lists it at $15,136. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2185570589
Dimensions10.80 × 5.31 × 3.21 mm
L/W Ratio2.03
Girdle conditionFaceted
Cert comments
Pinpoints are not shown.
Top View
10.80 mm5.31 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2185570589
Side View
Table 55.0%CrownGirdle: MED-VTKPavilionCuletDepth 60.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $15,136 NZD|Low: $9,254 NZD|High: $15,361 NZD|Avg: $11,260 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$9,254 NZD
Retailer 4$9,418 NZD
Retailer 5$9,606 NZD
Retailer 3$10,724 NZD
MOH London$15,136 NZD

45 data points across 5 retailers

5 retailers$9,254 NZD to $15,136 NZD

B
Cheapest Retailer
-
$9,254 NZD
B
Retailer 2
-
$9,418 NZD
View
Retailer 3
-
$9,606 NZD
View
Price last confirmed 29 days ago
B
Retailer 4
-
$10,724 NZD
View
Most Expensive
B
MOH London
325C69440 · Nov 4
$15,136 NZD
£6,607 GBP
View
4 more retailers have this diamond
Prices start from $9,254 NZDSave up to $5,882 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.

B
1.03ct Marquise
$9,254 NZD