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Marquise|Natural|GIA

1.51ct E SI2 Marquise Natural Diamond

VG • E/SI2 • GIA 6551478297

Certificate GIA 6551478297

Diamond specifications and retailer prices

From $13,777 NZD
$7,765 USD
As of October 31, 2026
Save $12,653 NZD (48%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $26,430 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551478297. Listed at 7 retailers as of October 30, 2026, with prices from $13,777 to $26,430, a $12,653 spread on the same certified stone. NZ Jewellers lists it at $26,430. 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

1.51
Carat
E
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.89°
Pavilion angle39.38°
OriginNatural
Grading LabGIA
CertificateGIA 6551478297
Dimensions10.88 × 6.12 × 3.71 mm
L/W Ratio1.78
Girdle conditionExtremely Thick
Key to symbols
Feather, Crystal, Cavity, Needle
Top View
10.88 mm6.12 mm1.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551478297
Side View
Table 66.0%Crown 35.89°Girdle: VTK-ETKPavilion 39.38°Culet: NoneDepth 60.6%

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: Oct 31
Current: $26,430 NZD|Low: $13,777 NZD|High: $26,574 NZD|Avg: $17,384 NZD|-0.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 6$13,777 NZD
Retailer 7$13,893 NZD
Retailer 3$14,891 NZD
Retailer 5$15,802 NZD
Retailer 4$16,045 NZD
Retailer 2$22,022 NZD
NZ Jewellers$26,430 NZD

20 data points across 7 retailers

7 retailers$13,777 NZD to $26,430 NZD

A
Cheapest Retailer
-
$13,777 NZD
$7,765 USD
A
Retailer 2
-
$13,893 NZD
$7,830 USD
View
A
Retailer 3
-
$14,891 NZD
£6,608 GBP
View
A
Retailer 4
-
$15,802 NZD
$8,906 USD
View
A
Retailer 5
-
$16,045 NZD
$9,043 USD
View
B
Retailer 6
-
$22,022 NZD
£9,773 GBP
View
Most Expensive
B
NZ Jewellers
a75fa58f-1818-4df9-bf64-a4d62544547a · Oct 30
$26,430 NZD
$14,896 USD
View
6 more retailers have this diamond
Prices start from $13,777 NZDSave up to $12,653 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
1.51ct Marquise
$13,777 NZD