CaratHunter
Plans
Marquise|Natural|GIA

1.51ct M SI2 Marquise Natural Diamond

EX • M/SI2 • GIA 6522134054

Certificate GIA 6522134054

Diamond specifications and retailer prices

From $5,781 NZD
As of November 4, 2026
Save $7,219 NZD (56%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $13,001 NZD at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6522134054. Listed at 10 retailers as of November 4, 2026, with prices from $5,781 to $13,001, a $7,219 spread on the same certified stone. NZ Jewellers lists it at $13,001. 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

1.51
Carat
M
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34.72°
Pavilion angle39.79°
OriginNatural
Grading LabGIA
CertificateGIA 6522134054
Dimensions11.57 × 6.12 × 3.74 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.57 mm6.12 mm1.51 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6522134054
Side View
Table 57.0%Crown 34.72°Girdle: THN-THKPavilion 39.79°Culet: NoneDepth 61.1%

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: Nov 4
Current: $13,001 NZD|Low: $4,880 NZD|High: $13,001 NZD|Avg: $7,318 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
November 6, 2026
Retailer 4$4,880 NZD
Retailer 5$5,781 NZD
Retailer 8$5,787 NZD
Retailer 3$6,002 NZD
Retailer 7$6,761 NZD
Retailer 9$6,761 NZD
Retailer 6$7,021 NZD
Retailer 12$7,109 NZD
Retailer 10$7,800 NZD
Retailer 2$7,914 NZD
Retailer 11$8,879 NZD
NZ Jewellers$13,001 NZD

20 data points across 12 retailers

10 retailers$5,781 NZD to $13,001 NZD

B+
Cheapest Retailer
-
$5,781 NZD
B+
Retailer 2
-
$5,787 NZD
View
B+
Retailer 3
-
$6,002 NZD
View
Retailer 4
-
$6,761 NZD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$6,761 NZD
View
B
Retailer 6
-
$7,021 NZD
View
B
Retailer 7
-
$7,109 NZD
View
B
Retailer 8
-
$7,800 NZD
View
B
Retailer 9
-
$7,914 NZD
View
Most Expensive
C
NZ Jewellers
5b1ab9ef-ea8d-46d9-8710-81a354d94ae7 · Nov 5
$13,001 NZD
$7,207 USD
View
9 more retailers have this diamond
Prices start from $5,781 NZDSave up to $7,219 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+
1.51ct Marquise
$5,781 NZD