CaratHunter
Plans
Marquise|Natural|GIA

0.51ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 1548875593

Certificate GIA 1548875593

Diamond specifications and retailer prices

From $914 NZD
As of November 6, 2026
Save $2,757 NZD (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,672 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 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 1548875593. Listed at 17 retailers as of November 5, 2026, with prices from $914 to $3,672, a $2,757 spread on the same certified stone. NZ Jewellers lists it at $3,672. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1548875593
Dimensions9.03 × 3.97 × 2.55 mm
L/W Ratio2.27
Girdle conditionFaceted
Key to symbols
Crystal, Twinning Wisp, Feather
Top View
9.03 mm3.97 mm0.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1548875593
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.2%

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: $3,672 NZD|Low: $914 NZD|High: $3,672 NZD|Avg: $1,514 NZD
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
November 6, 2026
Retailer 2$914 NZD
Retailer 8$978 NZD
Retailer 4$1,080 NZD
Retailer 7$1,171 NZD
Retailer 16$1,171 NZD
Retailer 6$1,215 NZD
Retailer 17$1,215 NZD
Retailer 9$1,222 NZD
Retailer 15$1,350 NZD
Retailer 10$1,389 NZD
Retailer 3$1,412 NZD
Retailer 11$1,428 NZD
Retailer 14$1,466 NZD
Retailer 5$1,674 NZD
Retailer 13$1,710 NZD
Retailer 12$2,699 NZD
NZ Jewellers$3,672 NZD

26 data points across 17 retailers

17 retailers$914 NZD to $3,672 NZD

A
Cheapest Retailer
-
$914 NZD
A
Retailer 2
-
$978 NZD
View
A
Retailer 3
-
$1,080 NZD
View
Final sale: no returns
A
Retailer 4
-
$1,171 NZD
View
Retailer 5
-
$1,171 NZD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$1,215 NZD
View
A
Retailer 7
-
$1,215 NZD
View
A
Retailer 8
-
$1,222 NZD
View
A
Retailer 9
-
$1,350 NZD
View
A
Retailer 10
-
$1,389 NZD
View
B+
Retailer 11
-
$1,412 NZD
View
A
Retailer 12
-
$1,428 NZD
View
Retailer 13
-
$1,466 NZD
View
Price last confirmed 7 days ago
B+
Retailer 14
-
$1,674 NZD
View
B+
Retailer 15
-
$1,710 NZD
View
B
Retailer 16
-
$2,699 NZD
View
Most Expensive
B
NZ Jewellers
67c3dd16-cd7b-49fa-a791-6fb67108466d · Nov 5
$3,672 NZD
$2,064 USD
View
16 more retailers have this diamond
Prices start from $914 NZDSave up to $2,757 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
$914 NZD