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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 $1,003 AUD
As of November 6, 2026
Save $1,361 AUD (58%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,364 AUD 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 $1,003 to $2,364, a $1,361 spread on the same certified stone. MOH London lists it at $2,364. 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: $2,364 AUD|Low: $1,003 AUD|High: $2,381 AUD|Avg: $1,415 AUD|+22.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$1,003 AUD
Retailer 5$1,025 AUD
Retailer 7$1,217 AUD
Retailer 2$1,253 AUD
Retailer 3$1,455 AUD
Retailer 8$1,581 AUD
Retailer 4$1,582 AUD
MOH London$2,364 AUD

45 data points across 8 retailers

8 retailers$1,003 AUD to $2,364 AUD

A
Cheapest Retailer
-
$1,003 AUD
Retailer 2
-
$1,025 AUD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$1,217 AUD
View
A
Retailer 4
-
$1,253 AUD
View
B+
Retailer 5
-
$1,455 AUD
View
Retailer 6
-
$1,581 AUD
View
Price last confirmed 34 days ago
B+
Retailer 7
-
$1,582 AUD
View
Most Expensive
B
MOH London
EA97C2F06 · Nov 4
$2,364 AUD
£1,279 GBP
View
7 more retailers have this diamond
Prices start from $1,003 AUDSave up to $1,361 AUD

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
$1,003 AUD