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Marquise|Natural|GIA

0.51ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 6392602089

Certificate GIA 6392602089

Diamond specifications and retailer prices

From $1,383 CAD
As of November 5, 2026
Save $1,205 CAD (47%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,588 CAD at MOH London · As of November 4, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6392602089. Listed at 5 retailers as of November 4, 2026, with prices from $1,383 to $2,588, a $1,205 spread on the same certified stone. MOH London lists it at $2,588. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
I
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6392602089
Dimensions8.85 × 3.99 × 2.27 mm
L/W Ratio2.22
Top View
8.85 mm3.99 mm0.51 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6392602089
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 56.8%

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 5
Current: $2,588 CAD|Low: $1,348 CAD|High: $2,623 CAD|Avg: $1,767 CAD|+2.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 4, 2026
Retailer 3$1,369 CAD
Retailer 5$1,383 CAD
Retailer 4$1,415 CAD
Retailer 6$1,510 CAD
Retailer 2$1,978 CAD
Retailer 7$2,077 CAD
MOH London$2,588 CAD

20 data points across 7 retailers

5 retailers$1,383 CAD to $2,588 CAD

Retailer 1
-
$1,369 CAD
Price last confirmed 19 days ago
B
Retailer 2
-
$1,383 CAD
View
Retailer 3
-
$1,415 CAD
View
Price last confirmed 8 days ago
B
Retailer 4
-
$1,978 CAD
View
Most Expensive
C
MOH London
66D9DBCA7 · Nov 4
$2,588 CAD
£1,459 GBP
View
4 more retailers have this diamond
Prices start from $1,383 CADSave up to $1,205 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
$1,383 CAD