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Marquise|Natural|GIA

0.51ct G SI2 Marquise Natural Diamond

VG • G/SI2 • GIA 6552497564

Certificate GIA 6552497564

Diamond specifications and retailer prices

From $1,006 NZD
$566 USD
As of November 2, 2026
Save $2,765 NZD (73%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,771 NZD at NZ Jewellers · As of October 30, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552497564. Listed at 21 retailers as of October 30, 2026, with prices from $1,006 to $3,771, a $2,765 spread on the same certified stone. NZ Jewellers lists it at $3,771. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle41.5°
OriginNatural
Grading LabGIA
CertificateGIA 6552497564
Dimensions7.97 × 4.23 × 2.69 mm
L/W Ratio1.88
Girdle conditionFaceted
Top View
7.97 mm4.23 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552497564
Side View
Table 61.0%Crown 36.6°Girdle: MED-THKPavilion 41.5°Culet: NDepth 63.6%

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 2
Current: $3,771 NZD|Low: $864 NZD|High: $3,883 NZD|Avg: $1,474 NZD|-2.9%
NZ Jewellers
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
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 10$1,006 NZD
Retailer 15$1,031 NZD
Retailer 7$1,089 NZD
Retailer 11$1,092 NZD
Retailer 9$1,173 NZD
Retailer 12$1,173 NZD
Retailer 14$1,201 NZD
Retailer 17$1,221 NZD
Retailer 6$1,233 NZD
Retailer 4$1,257 NZD
Retailer 8$1,271 NZD
Retailer 5$1,333 NZD
Retailer 19$1,333 NZD
Retailer 20$1,386 NZD
Retailer 2$1,436 NZD
Retailer 13$1,471 NZD
Retailer 3$1,543 NZD
Retailer 18$1,611 NZD
Retailer 16$2,776 NZD
NZ Jewellers$3,771 NZD

29 data points across 20 retailers

21 retailers$1,006 NZD to $3,771 NZD

A
Cheapest Retailer
-
$1,006 NZD
$566 USD
Final sale: no returns
A
Retailer 2
-
$1,031 NZD
$580 USD
View
A
Retailer 3
-
$1,089 NZD
$613 USD
View
B+
Retailer 4
-
$1,092 NZD
HK$4,800 HKD
View
A
Retailer 5
-
$1,173 NZD
$660 USD
View
A
Retailer 6
-
$1,173 NZD
$660 USD
View
A
Retailer 7
-
$1,201 NZD
$676 USD
View
A
Retailer 8
-
$1,221 NZD
$687 USD
View
A
Retailer 9
-
$1,233 NZD
$694 USD
View
B+
Retailer 10
-
$1,257 NZD
$707 USD
View
A
Retailer 11
-
$1,271 NZD
$715 USD
View
B+
Retailer 12
-
$1,333 NZD
$750 USD
View
B+
Retailer 13
-
$1,333 NZD
$750 USD
View
B+
Retailer 14
-
$1,386 NZD
$780 USD
View
B+
Retailer 15
-
$1,436 NZD
£636 GBP
View
B+
Retailer 16
-
$1,471 NZD
£652 GBP
View
B+
Retailer 17
-
$1,543 NZD
$868 USD
View
Retailer 18
-
$1,605 NZD
£711 GBP
View
Price last confirmed 37 days ago
B+
Retailer 19
-
$1,611 NZD
€863 EUR
View
B
Retailer 20
-
$2,776 NZD
£1,230 GBP
View
Most Expensive
B
NZ Jewellers
76c2553c-4cf3-400f-8ed5-5859e1cdf99e · Oct 30
$3,771 NZD
$2,122 USD
View
20 more retailers have this diamond
Prices start from $1,006 NZDSave up to $2,765 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
$1,006 NZD