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Marquise|Natural|GIA

0.51ct I IF Marquise Natural Diamond

VG • I/IF • GIA 5231904490

Certificate GIA 5231904490

Diamond specifications and retailer prices

From $1,135 AUD
As of November 6, 2026
Save $2,726 AUD (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,861 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 5231904490. Listed at 15 retailers as of November 5, 2026, with prices from $1,135 to $3,861, a $2,726 spread on the same certified stone. NZ Jewellers lists it at $3,861. 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
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5231904490
Dimensions8.62 × 4.08 × 2.45 mm
L/W Ratio2.11
Top View
8.62 mm4.08 mm0.51 ctI / IF
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5231904490
Side View
Table 64.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 60.0%

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: $3,861 AUD|Low: $1,135 AUD|High: $3,861 AUD|Avg: $1,731 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$1,135 AUD
Retailer 8$1,231 AUD
Retailer 10$1,231 AUD
Retailer 11$1,279 AUD
Retailer 2$1,381 AUD
Retailer 9$1,420 AUD
Retailer 5$1,460 AUD
Retailer 4$1,729 AUD
Retailer 6$1,901 AUD
Retailer 7$2,253 AUD
NZ Jewellers$3,861 AUD

31 data points across 11 retailers

15 retailers$1,135 AUD to $3,861 AUD

A
Cheapest Retailer
-
$1,135 AUD
Final sale: no returns
Retailer 2
-
$1,231 AUD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$1,231 AUD
View
B+
Retailer 4
-
$1,279 AUD
View
B+
Retailer 5
-
$1,381 AUD
View
Retailer 6
-
$1,420 AUD
View
Price last confirmed 67 days ago
B+
Retailer 7
-
$1,420 AUD
View
B+
Retailer 8
-
$1,460 AUD
View
B+
Retailer 9
-
$1,470 AUD
View
B+
Retailer 10
-
$1,729 AUD
View
Retailer 11
-
$1,851 AUD
View
Price last confirmed 33 days ago
B+
Retailer 12
-
$1,901 AUD
View
B
Retailer 13
-
$2,253 AUD
View
B
Retailer 14
-
$2,461 AUD
View
Most Expensive
B
NZ Jewellers
9b50a7d6-f75e-48b5-a521-d9373f0d8d63 · Nov 5
$3,861 AUD
$2,653 USD
View
14 more retailers have this diamond
Prices start from $1,135 AUDSave up to $2,726 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
$1,135 AUD