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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 $796 CAD
$570 USD
As of October 28, 2026
Save $390 CAD (33%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,817 CAD at MOH London · As of October 29, 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 October 28, 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

How it works →
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: Oct 28
Current: $1,817 CAD|Low: $796 CAD|High: $1,829 CAD|Avg: $1,190 CAD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 4$796 CAD
Retailer 2$932 CAD
Retailer 5$1,030 CAD
Retailer 3$1,187 CAD
MOH London$1,817 CAD

40 data points across 5 retailers

5 retailers$796 CAD to $1,187 CAD

B
Cheapest Retailer
-
$796 CAD
$570 USD
B
Retailer 2
-
$932 CAD
£525 GBP
View
B
Retailer 3
-
$1,030 CAD
$737 USD
View
B
Retailer 4
-
$1,187 CAD
€809 EUR
View
Most Expensive
MOH London
79724F968 · Oct 29
$1,817 CAD
£1,024 GBP
View
Price under review
4 more retailers have this diamond
Prices start from $796 CADSave up to $390 CAD

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
$796 CAD