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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 $1,841 NZD
$1,036 USD
As of October 31, 2026
Save $2,222 NZD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,063 NZD 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 $1,841 to $4,063, a $2,222 spread on the same certified stone. Flawless Fine Jewelry lists it at $4,063. 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: $4,063 NZD|Low: $1,841 NZD|High: $4,063 NZD|Avg: $2,395 NZD
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$1,841 NZD
Retailer 3$1,868 NZD
Retailer 10$1,935 NZD
Retailer 12$1,996 NZD
Retailer 5$2,004 NZD
Retailer 11$2,026 NZD
Retailer 7$2,079 NZD
Retailer 8$2,310 NZD
Retailer 2$2,663 NZD
Retailer 4$2,720 NZD
Retailer 14$2,726 NZD
Retailer 13$2,806 NZD
Retailer 6$3,006 NZD
Flawless Fine Jewelry$4,063 NZD

39 data points across 14 retailers

15 retailers$1,841 NZD to $4,063 NZD

A
Cheapest Retailer
-
$1,841 NZD
$1,036 USD
A
Retailer 2
-
$1,868 NZD
SGD 1,420 SGD
View
A
Retailer 3
-
$1,935 NZD
$1,089 USD
View
A
Retailer 4
-
$1,996 NZD
$1,123 USD
View
A
Retailer 5
-
$2,004 NZD
SGD 1,524 SGD
View
A
Retailer 6
-
$2,026 NZD
$1,140 USD
View
A
Retailer 7
-
$2,079 NZD
£921 GBP
View
A
Retailer 8
-
$2,310 NZD
$1,300 USD
View
B+
Retailer 9
-
$2,565 NZD
$1,443 USD
View
B+
Retailer 10
-
$2,663 NZD
€1,427 EUR
View
B+
Retailer 11
-
$2,720 NZD
$1,530 USD
View
B+
Retailer 12
-
$2,726 NZD
£1,208 GBP
View
B+
Retailer 13
-
$2,806 NZD
$1,579 USD
View
B+
Retailer 14
-
$3,006 NZD
$1,691 USD
View
Most Expensive
B
Flawless Fine Jewelry
A5DA56A30 · Nov 2
$4,063 NZD
£1,800 GBP
View
14 more retailers have this diamond
Prices start from $1,841 NZDSave up to $2,222 NZD

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
$1,841 NZD