Marquise|Natural|GIA

0.51ct D IF Marquise Natural Diamond

EX • D/IF • GIA 1557157190

Certificate GIA 1557157190

Diamond specifications and retailer prices

From $1,036 USD
As of October 28, 2026
Save $655 USD (39%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,332 USD at Flawless Fine Jewelry · As of October 16, 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 27, 2026, with a 63% 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
Color
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 28
Current: $1,300 USD|Low: $1,036 USD|High: $1,723 USD|Avg: $1,338 USD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 7$1,036 USD
Retailer 2$1,051 USD
Retailer 8$1,089 USD
Retailer 11$1,123 USD
Retailer 4$1,128 USD
Retailer 10$1,140 USD
Retailer 9$1,172 USD
Retailer 1$1,300 USD
Retailer 6$1,497 USD
Retailer 3$1,530 USD
Retailer 13$1,534 USD
Retailer 12$1,579 USD
Retailer 5$1,691 USD

42 data points across 13 retailers

15 retailers$1,036 USD to $1,691 USD

A
Cheapest Retailer
-
$1,036 USD
A
Retailer 2
-
$1,051 USD
SGD 1,420 SGD
View
A
Retailer 3
-
$1,089 USD
View
A
Retailer 4
-
$1,123 USD
View
A
Retailer 5
-
$1,128 USD
SGD 1,524 SGD
View
A
Retailer 6
-
$1,140 USD
View
A
Retailer 7
-
$1,172 USD
£923 GBP
View
A
Retailer 8
-
$1,300 USD
View
B+
Retailer 9
-
$1,443 USD
View
B+
Retailer 10
-
$1,497 USD
€1,426 EUR
View
B+
Retailer 11
-
$1,530 USD
View
B+
Retailer 12
-
$1,534 USD
£1,208 GBP
View
B+
Retailer 13
-
$1,579 USD
View
B+
Retailer 14
-
$1,691 USD
View
Most Expensive
B
Flawless Fine Jewelry
A5DA56A30 · Oct 16
$2,332 USD
£1,836 GBP
View
Price last confirmed 13 days ago
14 more retailers have this diamond
Prices start from $1,036 USDSave up to $655 USD

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
$1,036 USD