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Marquise|Natural|GIA

0.51ct I IF Marquise Natural Diamond

VG • I/IF • GIA 1545830912

Certificate GIA 1545830912

Diamond specifications and retailer prices

From $1,243 NZD
As of November 6, 2026
Save $1,676 NZD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,919 NZD at MOH London · As of November 7, 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 6, 2026, with prices from $1,243 to $2,919, a $1,676 spread on the same certified stone. MOH London lists it at $2,919. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,919 NZD|Low: $1,243 NZD|High: $2,951 NZD|Avg: $1,754 NZD|+22.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 6$1,243 NZD
Retailer 5$1,270 NZD
Retailer 7$1,508 NZD
Retailer 2$1,553 NZD
Retailer 3$1,804 NZD
Retailer 8$1,959 NZD
Retailer 4$1,961 NZD
MOH London$2,919 NZD

46 data points across 8 retailers

8 retailers$1,243 NZD to $2,919 NZD

A
Cheapest Retailer
-
$1,243 NZD
A
Retailer 2
-
$1,270 NZD
View
A
Retailer 3
-
$1,508 NZD
View
A
Retailer 4
-
$1,553 NZD
View
B+
Retailer 5
-
$1,804 NZD
View
Retailer 6
-
$1,959 NZD
View
Price last confirmed 34 days ago
B+
Retailer 7
-
$1,961 NZD
View
Most Expensive
B
MOH London
EA97C2F06 · Nov 7
$2,919 NZD
£1,274 GBP
View
7 more retailers have this diamond
Prices start from $1,243 NZDSave up to $1,676 NZD

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
$1,243 NZD