Marquise|Natural|GIA

0.51ct I IF Marquise Natural Diamond

EX • I/IF • GIA 6555311957

Certificate GIA 6555311957

Diamond specifications and retailer prices

From $682 USD
As of November 4, 2026
Save $1,635 USD (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,317 USD at NZ Jewellers · As of November 5, 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 I colour (near-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 6555311957. Listed at 7 retailers as of November 4, 2026, with prices from $682 to $2,317, a $1,635 spread on the same certified stone. NZ Jewellers lists it at $2,317. 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
I
Color
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555311957
Dimensions9.15 × 3.94 × 2.44 mm
L/W Ratio2.32
Key to symbols
Surface Graining, Minor Details of Polish
Top View
9.15 mm3.94 mm0.51 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555311957
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.0%

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: Nov 4
Current: $2,317 USD|Low: $596 USD|High: $2,713 USD|Avg: $1,317 USD|-14.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6$682 USD
Retailer 2$828 USD
Retailer 3$985 USD
Retailer 7$1,018 USD
Retailer 4$1,353 USD
Retailer 5$1,493 USD
NZ Jewellers$2,317 USD

38 data points across 7 retailers

7 retailers$682 USD to $2,317 USD

A
Cheapest Retailer
-
$682 USD
Final sale: no returns
A
Retailer 2
-
$828 USD
View
A
Retailer 3
-
$985 USD
View
B+
Retailer 4
-
$1,018 USD
View
B+
Retailer 5
-
$1,353 USD
View
B+
Retailer 6
-
$1,493 USD
View
Most Expensive
B
NZ Jewellers
eee99ce7-3c5c-43e1-9748-6a5c0f2176a5 · Nov 5
$2,317 USD
View
6 more retailers have this diamond
Prices start from $682 USDSave up to $1,635 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
$682 USD