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Marquise|Natural|GIA

0.51ct I IF Marquise Natural Diamond

EX • I/IF • GIA 6555311957

Certificate GIA 6555311957

Diamond specifications and retailer prices

From $1,230 NZD
As of November 6, 2026
Save $2,949 NZD (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,180 NZD 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 5, 2026, with prices from $1,230 to $4,180, a $2,949 spread on the same certified stone. NZ Jewellers lists it at $4,180. 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
Colour
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 6
Current: $4,180 NZD|Low: $1,075 NZD|High: $4,894 NZD|Avg: $2,368 NZD|-14.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 6$1,230 NZD
Retailer 2$1,504 NZD
Retailer 4$1,773 NZD
Retailer 7$1,836 NZD
Retailer 3$2,428 NZD
Retailer 5$2,693 NZD
NZ Jewellers$4,180 NZD

40 data points across 7 retailers

7 retailers$1,230 NZD to $4,180 NZD

A
Cheapest Retailer
-
$1,230 NZD
Final sale: no returns
A
Retailer 2
-
$1,504 NZD
View
A
Retailer 3
-
$1,773 NZD
View
B+
Retailer 4
-
$1,836 NZD
View
B+
Retailer 5
-
$2,428 NZD
View
B+
Retailer 6
-
$2,693 NZD
View
Most Expensive
B
NZ Jewellers
eee99ce7-3c5c-43e1-9748-6a5c0f2176a5 · Nov 5
$4,180 NZD
$2,317 USD
View
6 more retailers have this diamond
Prices start from $1,230 NZDSave up to $2,949 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
$1,230 NZD