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Marquise|Natural|GIA

0.51ct H SI1 Marquise Natural Diamond

ID • H/SI1 • GIA 2547417925

Certificate GIA 2547417925

Diamond specifications and retailer prices

From $1,144 CAD
£645 GBP
As of October 28, 2026
Save $1,014 CAD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,157 CAD at MOH London · As of October 26, 2026
View at MOH London

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter 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 2547417925. Listed at 8 retailers as of October 26, 2026, with prices from $1,144 to $2,157, a $1,014 spread on the same certified stone. MOH London lists it at $2,157. 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

0.51
Carat
H
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2547417925
Dimensions8.00 × 4.13 × 2.65 mm
L/W Ratio1.94
Top View
8.00 mm4.13 mm0.51 ctH / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2547417925
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $2,157 CAD|Low: $933 CAD|High: $2,202 CAD|Avg: $1,347 CAD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 5$933 CAD
Retailer 6$1,118 CAD
Retailer 9$1,138 CAD
Retailer 2$1,144 CAD
Retailer 8$1,218 CAD
Retailer 3$1,323 CAD
Retailer 7$1,416 CAD
Retailer 4$1,437 CAD
MOH London$2,157 CAD

38 data points across 9 retailers

8 retailers$1,144 CAD to $2,157 CAD

Retailer 1
-
$933 CAD
$668 USD
Price last confirmed 8 days ago
Retailer 2
-
$1,118 CAD
$800 USD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$1,144 CAD
£645 GBP
View
Retailer 4
-
$1,218 CAD
£686 GBP
View
Price last confirmed 36 days ago
B+
Retailer 5
-
$1,323 CAD
€902 EUR
View
Retailer 6
-
$1,416 CAD
A$1,560 AUD
View
Price last confirmed 29 days ago
B
Retailer 7
-
$1,437 CAD
ZAR 16,615 ZAR
View
Most Expensive
B
MOH London
FE39B73A6 · Oct 26
$2,157 CAD
£1,216 GBP
View
7 more retailers have this diamond
Prices start from $1,144 CADSave up to $1,014 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+
0.51ct Marquise
$1,144 CAD