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Marquise|Natural|GIA

0.51ct D IF Marquise Natural Diamond

EX • D/IF • GIA 2554900849

Certificate GIA 2554900849

Diamond specifications and retailer prices

From $1,189 AUD
$835 USD
As of October 28, 2026
Save $1,393 AUD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,416 AUD at NZ Jewellers · As of October 6, 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 2554900849. Listed at 11 retailers as of October 27, 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
SymmetryExcellent
FluorescenceFaint
Crown angle38.39°
Pavilion angle41.14°
OriginNatural
Grading LabGIA
CertificateGIA 2554900849
Dimensions7.75 × 4.19 × 2.68 mm
L/W Ratio1.85
Top View
7.75 mm4.19 mm0.51 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554900849
Side View
Table 61.0%Crown 38.39°Girdle: UNSPavilion 41.14°Culet: NoneDepth 64.0%

Caratlytics Score

How it works →
A+
Exceptional
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: Oct 28
Current: $1,500 AUD|Low: $1,189 AUD|High: $2,907 AUD|Avg: $1,906 AUD|-7.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 28, 2026
Retailer 6$1,189 AUD
Retailer 1$1,500 AUD
Retailer 3$1,552 AUD
Retailer 7$1,700 AUD
Retailer 8$1,703 AUD
Retailer 5$1,721 AUD
Retailer 2$1,878 AUD
Retailer 9$2,004 AUD
Retailer 10$2,387 AUD
Retailer 4$2,582 AUD

27 data points across 10 retailers

11 retailers$1,189 AUD to $2,582 AUD

A+
Cheapest Retailer
-
$1,189 AUD
$835 USD
Final sale: no returns
A
Retailer 2
-
$1,500 AUD
£830 GBP
View
Retailer 3
-
$1,552 AUD
$1,090 USD
View
Price last confirmed 5 days ago
A
Retailer 4
-
$1,700 AUD
$1,194 USD
View
A
Retailer 5
-
$1,703 AUD
€1,139 EUR
View
A
Retailer 6
-
$1,721 AUD
£952 GBP
View
Retailer 7
-
$1,878 AUD
View
Price last confirmed 29 days ago
A
Retailer 8
-
$2,004 AUD
ZAR 22,738 ZAR
View
B+
Retailer 9
-
$2,387 AUD
£1,320 GBP
View
B+
Retailer 10
-
$2,582 AUD
£1,428 GBP
View
Most Expensive
NZ Jewellers
12d89cf9-1dbe-4673-8f98-420e5a117a3a · Oct 6
$4,416 AUD
$3,102 USD
View
Price last confirmed 26 days ago
10 more retailers have this diamond
Prices start from $1,189 AUDSave up to $1,393 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
$1,189 AUD