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Marquise|Natural|GIA

0.51ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6565280558

Certificate GIA 6565280558

Diamond specifications and retailer prices

From $708 CAD
₹48,251 INR
As of October 31, 2026
Save $1,367 CAD (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,074 CAD at Aurelinne · As of October 31, 2026
View at Aurelinne

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 6565280558. Listed at 7 retailers as of October 31, 2026, with prices from $708 to $2,074, a $1,367 spread on the same certified stone. Aurelinne lists it at $2,074. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565280558
Dimensions8.57 × 3.89 × 2.49 mm
L/W Ratio2.20
Culet sizeNone
Top View
8.57 mm3.89 mm0.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565280558
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,074 CAD|Low: $707 CAD|High: $2,074 CAD|Avg: $1,154 CAD
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 3$708 CAD
Retailer 7$887 CAD
Retailer 6$1,276 CAD
Retailer 5$1,420 CAD
Retailer 4$1,472 CAD
Retailer 2$1,658 CAD
Aurelinne$2,074 CAD

36 data points across 7 retailers

7 retailers$708 CAD to $2,074 CAD

A
Cheapest Retailer
-
$708 CAD
₹48,251 INR
Retailer 2
-
$887 CAD
$635 USD
View
Price last confirmed 11 days ago
B+
Retailer 3
-
$1,276 CAD
€870 EUR
View
B
Retailer 4
-
$1,420 CAD
£800 GBP
View
B
Retailer 5
-
$1,472 CAD
ZAR 17,026 ZAR
View
B
Retailer 6
-
$1,658 CAD
$1,187 USD
View
Final sale: no returns
Most Expensive
B
Aurelinne
786e7370-bad7-4744-a992-350f29be4bb6 · Oct 31
$2,074 CAD
$1,485 USD
View
6 more retailers have this diamond
Prices start from $708 CADSave up to $1,367 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.

A
0.51ct Marquise
$708 CAD