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Marquise|Natural|GIA

0.51ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 6545321237

Certificate GIA 6545321237

Diamond specifications and retailer prices

From $1,309 NZD
As of November 5, 2026
Save $1,490 NZD (53%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,799 NZD at Diamond Exchange Canada · As of November 5, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545321237. Listed at 11 retailers as of November 5, 2026, with prices from $1,309 to $2,799, a $1,490 spread on the same certified stone. Diamond Exchange Canada lists it at $2,799. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle41.3°
OriginNatural
Grading LabGIA
CertificateGIA 6545321237
Dimensions8.19 × 4.21 × 2.68 mm
L/W Ratio1.95
Top View
8.19 mm4.21 mm0.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6545321237
Side View
Table 58.0%CrownGirdle: MED-VTKPavilion 41.3°Culet: NoneDepth 63.5%

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 5
Current: $2,799 NZD|Low: $911 NZD|High: $2,799 NZD|Avg: $1,795 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 10$911 NZD
Retailer 11$1,309 NZD
Retailer 15$1,448 NZD
Retailer 8$1,517 NZD
Retailer 5$1,539 NZD
Retailer 3$1,555 NZD
Retailer 13$1,585 NZD
Retailer 18$1,585 NZD
Retailer 9$1,645 NZD
Retailer 12$1,782 NZD
Retailer 16$1,896 NZD
Retailer 4$1,921 NZD
Retailer 7$1,921 NZD
Retailer 14$1,943 NZD
Retailer 6$1,975 NZD
Retailer 2$2,231 NZD
Retailer 17$2,636 NZD
Diamond Exchange Canada$2,799 NZD

19 data points across 18 retailers

11 retailers$1,309 NZD to $2,799 NZD

A
Cheapest Retailer
-
$1,309 NZD
B+
Retailer 2
-
$1,448 NZD
View
B+
Retailer 3
-
$1,555 NZD
View
B+
Retailer 4
-
$1,585 NZD
View
B+
Retailer 5
-
$1,782 NZD
View
B
Retailer 6
-
$1,921 NZD
View
B
Retailer 7
-
$1,921 NZD
View
B
Retailer 8
-
$1,943 NZD
View
B+
Retailer 9
-
$1,975 NZD
View
B
Retailer 10
-
$2,231 NZD
View
Most Expensive
B
Diamond Exchange Canada
1982807032 · Nov 5
$2,799 NZD
CA$2,185 CAD
View
10 more retailers have this diamond
Prices start from $1,309 NZDSave up to $1,490 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
$1,309 NZD