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Marquise|Natural|GIA

0.51ct I IF Marquise Natural Diamond

EX • I/IF • GIA 6542938952

Certificate GIA 6542938952

Diamond specifications and retailer prices

From $1,016 NZD
As of November 6, 2026
Save $1,788 NZD (64%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,569 NZD at NZ Jewellers · As of September 25, 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 6542938952. Listed at 20 retailers as of November 6, 2026, with a 176% 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
I
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Pavilion angle39.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542938952
Dimensions7.62 × 4.10 × 2.69 mm
L/W Ratio1.86
Top View
7.62 mm4.10 mm0.51 ctI / IF
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542938952
Side View
Table 60.0%CrownGirdle: STK-VTKPavilion 39.6°Culet: NoneDepth 65.6%

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: $1,358 NZD|Low: $1,016 NZD|High: $2,857 NZD|Avg: $1,764 NZD|-2.1%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 7, 2026
Retailer 4$1,016 NZD
Retailer 6$1,281 NZD
Retailer 7$1,292 NZD
Retailer 1$1,358 NZD
Retailer 14$1,414 NZD
Retailer 8$1,436 NZD
Retailer 12$1,458 NZD
Retailer 10$1,614 NZD
Retailer 3$1,714 NZD
Retailer 9$1,714 NZD
Retailer 16$1,753 NZD
Retailer 15$1,863 NZD
Retailer 5$1,898 NZD
Retailer 13$2,024 NZD
Retailer 17$2,161 NZD
Retailer 11$2,551 NZD
Retailer 2$2,803 NZD

29 data points across 17 retailers

20 retailers$1,016 NZD to $2,803 NZD

A
Cheapest Retailer
-
$1,016 NZD
A
Retailer 2
-
$1,281 NZD
View
A
Retailer 3
-
$1,292 NZD
View
Final sale: no returns
A
Retailer 4
-
$1,358 NZD
View
A
Retailer 5
-
$1,414 NZD
View
Retailer 6
-
$1,436 NZD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$1,458 NZD
View
A
Retailer 8
-
$1,614 NZD
View
B+
Retailer 9
-
$1,714 NZD
View
A
Retailer 10
-
$1,714 NZD
View
B+
Retailer 11
-
$1,753 NZD
View
B+
Retailer 12
-
$1,863 NZD
View
B+
Retailer 13
-
$1,898 NZD
View
B+
Retailer 14
-
$1,966 NZD
View
B+
Retailer 15
-
$2,024 NZD
View
B+
Retailer 16
-
$2,161 NZD
View
Retailer 17
-
$2,168 NZD
View
Price last confirmed 33 days ago
B+
Retailer 18
-
$2,551 NZD
View
B
Retailer 19
-
$2,803 NZD
View
Most Expensive
NZ Jewellers
9f9df035-b8c5-4539-99ae-50f8749fb01b · Sep 25
$4,569 NZD
$2,533 USD
View
Price last confirmed 42 days ago
19 more retailers have this diamond
Prices start from $1,016 NZDSave up to $1,788 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
$1,016 NZD