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Marquise|Natural|GIA

0.51ct D IF Marquise Natural Diamond

EX • D/IF • GIA 6542977182

Certificate GIA 6542977182

Diamond specifications and retailer prices

From $1,782 AUD
$1,249 USD
As of November 2, 2026
Save $2,089 AUD (54%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,202 AUD at NZ Jewellers · As of September 30, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542977182. Listed at 10 retailers as of November 2, 2026, with a 117% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542977182
Dimensions7.67 × 4.14 × 2.64 mm
L/W Ratio1.85
Top View
7.67 mm4.14 mm0.51 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542977182
Side View
Table 55.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 63.7%

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 2
Current: $2,793 AUD|Low: $1,442 AUD|High: $3,871 AUD|Avg: $2,532 AUD|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 2$1,442 AUD
Retailer 3$1,461 AUD
Retailer 9$1,782 AUD
Retailer 6$1,956 AUD
Retailer 4$2,382 AUD
Retailer 7$2,446 AUD
Retailer 11$2,666 AUD
Retailer 1$2,793 AUD
Retailer 8$3,521 AUD
Retailer 5$3,737 AUD
Retailer 10$3,871 AUD

20 data points across 11 retailers

10 retailers$1,782 AUD to $3,871 AUD

A
Cheapest Retailer
-
$1,782 AUD
$1,249 USD
Final sale: no returns
A
Retailer 2
-
$1,956 AUD
$1,371 USD
View
B+
Retailer 3
-
$2,382 AUD
£1,314 GBP
View
B+
Retailer 4
-
$2,446 AUD
$1,714 USD
View
B+
Retailer 5
-
$2,666 AUD
$1,868 USD
View
B+
Retailer 6
-
$2,793 AUD
€1,864 EUR
View
B
Retailer 7
-
$3,521 AUD
CA$3,427 CAD
View
B
Retailer 8
-
$3,737 AUD
£2,062 GBP
View
B
Retailer 9
-
$3,871 AUD
£2,136 GBP
View
Most Expensive
NZ Jewellers
d26d83d4-8446-4b5b-8960-70ea873f11aa · Sep 30
$5,202 AUD
$3,646 USD
View
Price last confirmed 33 days ago
9 more retailers have this diamond
Prices start from $1,782 AUDSave up to $2,089 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
$1,782 AUD