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Marquise|Natural|GIA

0.51ct D IF Marquise Natural Diamond

EX • D/IF • GIA 2566276361

Certificate GIA 2566276361

Diamond specifications and retailer prices

From $1,560 AUD
$1,096 USD
As of October 31, 2026
Save $1,521 AUD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,081 AUD at Flawless Fine Jewelry · As of November 2, 2026
View at Flawless Fine Jewelry

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 2566276361. Listed at 15 retailers as of October 31, 2026, with prices from $1,560 to $3,081, a $1,521 spread on the same certified stone. Flawless Fine Jewelry lists it at $3,081. 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
Crown angle37.57°
Pavilion angle38°
OriginNatural
Grading LabGIA
CertificateGIA 2566276361
Dimensions8.74 × 4.10 × 2.43 mm
L/W Ratio2.13
Culet sizeNone
Top View
8.74 mm4.10 mm0.51 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566276361
Side View
Table 59.0%Crown 37.57°Girdle: MED-THKPavilion 38°Culet: NoneDepth 59.3%

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: Oct 31
Current: $2,254 AUD|Low: $1,575 AUD|High: $2,267 AUD|Avg: $1,909 AUD|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 5$1,575 AUD
Retailer 4$1,609 AUD
Retailer 2$1,760 AUD
Retailer 3$1,957 AUD
Retailer 1$2,254 AUD
Retailer 6$2,267 AUD

40 data points across 6 retailers

15 retailers$1,560 AUD to $3,081 AUD

A
Cheapest Retailer
-
$1,560 AUD
$1,096 USD
A
Retailer 2
-
$1,575 AUD
SGD 1,495 SGD
View
A
Retailer 3
-
$1,609 AUD
$1,130 USD
View
A
Retailer 4
-
$1,639 AUD
$1,151 USD
View
A
Retailer 5
-
$1,686 AUD
$1,184 USD
View
A
Retailer 6
-
$1,698 AUD
SGD 1,612 SGD
View
A
Retailer 7
-
$1,723 AUD
$1,210 USD
View
A
Retailer 8
-
$1,760 AUD
£973 GBP
View
A
Retailer 9
-
$1,957 AUD
$1,375 USD
View
B+
Retailer 10
-
$2,254 AUD
€1,508 EUR
View
B+
Retailer 11
-
$2,267 AUD
$1,592 USD
View
B+
Retailer 12
-
$2,311 AUD
£1,278 GBP
View
B+
Retailer 13
-
$2,377 AUD
$1,670 USD
View
B+
Retailer 14
-
$2,540 AUD
$1,784 USD
View
Most Expensive
B
Flawless Fine Jewelry
634A3A15D · Nov 2
$3,081 AUD
£1,704 GBP
View
14 more retailers have this diamond
Prices start from $1,560 AUDSave up to $1,521 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
$1,560 AUD