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Marquise|Natural|GIA

0.51ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 7548950012

Certificate GIA 7548950012

Diamond specifications and retailer prices

From $1,646 NZD
$926 USD
As of October 31, 2026
Save $923 NZD (36%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,569 NZD at Diamond Exchange Canada · As of November 2, 2026
View at Diamond Exchange Canada

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7548950012. Listed at 9 retailers as of October 31, 2026, with prices from $1,646 to $2,569, a $923 spread on the same certified stone. Diamond Exchange Canada lists it at $2,569. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7548950012
Dimensions7.85 × 4.12 × 2.64 mm
L/W Ratio1.91
Girdle conditionVery Thick
Top View
7.85 mm4.12 mm0.51 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7548950012
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 64.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,569 NZD|Low: $877 NZD|High: $2,569 NZD|Avg: $1,787 NZD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 3$877 NZD
Retailer 12$1,358 NZD
Retailer 4$1,515 NZD
Retailer 11$1,646 NZD
Retailer 9$1,777 NZD
Retailer 10$1,777 NZD
Retailer 6$1,784 NZD
Retailer 7$1,831 NZD
Retailer 2$2,066 NZD
Retailer 5$2,115 NZD
Retailer 8$2,243 NZD
Diamond Exchange Canada$2,569 NZD

22 data points across 12 retailers

9 retailers$1,646 NZD to $2,569 NZD

B+
Cheapest Retailer
-
$1,646 NZD
$926 USD
B
Retailer 2
-
$1,777 NZD
$1,000 USD
View
B
Retailer 3
-
$1,777 NZD
$1,000 USD
View
B
Retailer 4
-
$1,784 NZD
$1,004 USD
View
B+
Retailer 5
-
$1,831 NZD
$1,030 USD
View
B
Retailer 6
-
$2,066 NZD
€1,107 EUR
View
B
Retailer 7
-
$2,115 NZD
£937 GBP
View
Retailer 8
-
$2,243 NZD
$1,262 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Diamond Exchange Canada
1994949657 · Nov 2
$2,569 NZD
CA$2,008 CAD
View
8 more retailers have this diamond
Prices start from $1,646 NZDSave up to $923 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.

B+
0.51ct Marquise
$1,646 NZD