Marquise|Natural|GIA

0.51ct I IF Marquise Natural Diamond

VG • I/IF • GIA 1545830912

Certificate GIA 1545830912

Diamond specifications and retailer prices

From $689 USD
As of November 4, 2026
Save $935 USD (58%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,624 USD 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 IF clarity (flawless or internally-flawless), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1545830912. Listed at 8 retailers as of November 4, 2026, with prices from $689 to $1,624, a $935 spread on the same certified stone. MOH London lists it at $1,624. 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
IF
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545830912
Dimensions8.56 × 4.19 × 2.37 mm
L/W Ratio2.04
Girdle conditionFaceted
Top View
8.56 mm4.19 mm0.51 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1545830912
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 56.4%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $1,624 USD|Low: $689 USD|High: $1,636 USD|Avg: $972 USD|+22.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$689 USD
Retailer 5$704 USD
Retailer 7$836 USD
Retailer 2$861 USD
Retailer 3$1,000 USD
Retailer 8$1,086 USD
Retailer 4$1,087 USD
MOH London$1,624 USD

46 data points across 8 retailers

8 retailers$689 USD to $1,624 USD

A
Cheapest Retailer
-
$689 USD
Retailer 2
-
$704 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$836 USD
View
A
Retailer 4
-
$861 USD
View
B+
Retailer 5
-
$1,000 USD
View
Retailer 6
-
$1,086 USD
View
Price last confirmed 33 days ago
B+
Retailer 7
-
$1,087 USD
View
Most Expensive
B
MOH London
EA97C2F06 · Nov 4
$1,624 USD
£1,279 GBP
View
7 more retailers have this diamond
Prices start from $689 USDSave up to $935 USD

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
$689 USD