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Marquise|Natural|GIA

0.51ct D IF Marquise Natural Diamond

EX • D/IF • GIA 1557157190

Certificate GIA 1557157190

Diamond specifications and retailer prices

From $1,478 AUD
$1,036 USD
As of October 31, 2026
Save $1,784 AUD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,262 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 1557157190. Listed at 15 retailers as of October 31, 2026, with prices from $1,478 to $3,262, a $1,784 spread on the same certified stone. Flawless Fine Jewelry lists it at $3,262. 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 angle37.37°
Pavilion angle40.53°
OriginNatural
Grading LabGIA
CertificateGIA 1557157190
Dimensions7.78 × 4.12 × 2.64 mm
L/W Ratio1.89
Culet sizeNone
Top View
7.78 mm4.12 mm0.51 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557157190
Side View
Table 59.0%Crown 37.37°Girdle: STK-VTKPavilion 40.53°Culet: NoneDepth 64.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $3,262 AUD|Low: $1,478 AUD|High: $3,262 AUD|Avg: $1,923 AUD
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 9$1,478 AUD
Retailer 3$1,499 AUD
Retailer 10$1,554 AUD
Retailer 12$1,602 AUD
Retailer 5$1,609 AUD
Retailer 11$1,627 AUD
Retailer 7$1,669 AUD
Retailer 8$1,855 AUD
Retailer 2$2,138 AUD
Retailer 4$2,183 AUD
Retailer 14$2,189 AUD
Retailer 13$2,253 AUD
Retailer 6$2,413 AUD
Flawless Fine Jewelry$3,262 AUD

39 data points across 14 retailers

15 retailers$1,478 AUD to $3,262 AUD

A
Cheapest Retailer
-
$1,478 AUD
$1,036 USD
A
Retailer 2
-
$1,499 AUD
SGD 1,420 SGD
View
A
Retailer 3
-
$1,554 AUD
$1,089 USD
View
A
Retailer 4
-
$1,602 AUD
$1,123 USD
View
A
Retailer 5
-
$1,609 AUD
SGD 1,524 SGD
View
A
Retailer 6
-
$1,627 AUD
$1,140 USD
View
A
Retailer 7
-
$1,669 AUD
£921 GBP
View
A
Retailer 8
-
$1,855 AUD
$1,300 USD
View
B+
Retailer 9
-
$2,059 AUD
$1,443 USD
View
B+
Retailer 10
-
$2,138 AUD
€1,427 EUR
View
B+
Retailer 11
-
$2,183 AUD
$1,530 USD
View
B+
Retailer 12
-
$2,189 AUD
£1,208 GBP
View
B+
Retailer 13
-
$2,253 AUD
$1,579 USD
View
B+
Retailer 14
-
$2,413 AUD
$1,691 USD
View
Most Expensive
B
Flawless Fine Jewelry
A5DA56A30 · Nov 2
$3,262 AUD
£1,800 GBP
View
14 more retailers have this diamond
Prices start from $1,478 AUDSave up to $1,784 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
$1,478 AUD