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Marquise|Natural|GIA

0.45ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2557948965

Certificate GIA 2557948965

Diamond specifications and retailer prices

From €508 EUR
$570 USD
As of November 1, 2026
Save €249 EUR (33%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €1,154 EUR at MOH London · As of November 2, 2026
View at MOH London

About this 0.45ct natural marquise diamond

This 0.45ct natural marquise sits in the sub-half-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557948965. Listed at 5 retailers as of November 1, 2026, with a 49% 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

0.45
Carat
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557948965
Dimensions8.14 × 3.90 × 2.36 mm
L/W Ratio2.09
Culet sizeNone
Top View
8.14 mm3.90 mm0.45 ctI / SI2
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 2557948965
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.5%

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 1
Current: €1,154 EUR|Low: €508 EUR|High: €1,167 EUR|Avg: €760 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 4€508 EUR
Retailer 2€600 EUR
Retailer 5€657 EUR
Retailer 3€757 EUR
MOH London€1,154 EUR

41 data points across 5 retailers

5 retailers€508 EUR to €757 EUR

B
Cheapest Retailer
-
€508 EUR
$570 USD
B
Retailer 2
-
€600 EUR
£530 GBP
View
B
Retailer 3
-
€657 EUR
$737 USD
View
B
Retailer 4
-
€757 EUR
View
Most Expensive
MOH London
79724F968 · Nov 2
€1,154 EUR
£1,019 GBP
View
Price under review
4 more retailers have this diamond
Prices start from €508 EURSave up to €249 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.

B
0.45ct Marquise
€508 EUR