CaratHunter
Plans
Marquise|Natural|GIA

1.51ct M SI1 Marquise Natural Diamond

ID • M/SI1 • GIA 6532967541

Certificate GIA 6532967541

Diamond specifications and retailer prices

From $8,823 NZD
As of November 5, 2026
Save $4,896 NZD (36%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $18,676 NZD at NZ Jewellers · As of November 3, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532967541. Listed at 12 retailers as of October 31, 2026, with a 55% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6532967541
Dimensions11.39 × 6.03 × 3.85 mm
L/W Ratio1.89
Top View
11.39 mm6.03 mm1.51 ctM / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6532967541
Side View
Table 59.0%CrownGirdle: UNDPavilionCulet: NoneDepth 63.8%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $18,676 NZD|Low: $2,516 NZD|High: $18,676 NZD|Avg: $10,566 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
November 4, 2026
Retailer 5$2,516 NZD
Retailer 13$8,823 NZD
Retailer 9$9,066 NZD
Retailer 3$9,461 NZD
Retailer 4$9,994 NZD
Retailer 8$10,116 NZD
Retailer 10$10,116 NZD
Retailer 11$10,116 NZD
Retailer 2$11,166 NZD
Retailer 12$11,673 NZD
Retailer 6$12,198 NZD
Retailer 7$13,719 NZD
NZ Jewellers$18,676 NZD

40 data points across 13 retailers

12 retailers$8,823 NZD to $13,719 NZD

B
Cheapest Retailer
-
$8,823 NZD
B
Retailer 2
-
$9,066 NZD
View
B
Retailer 3
-
$9,461 NZD
View
B
Retailer 4
-
$9,994 NZD
View
B
Retailer 5
-
$10,116 NZD
View
B
Retailer 6
-
$10,116 NZD
View
Retailer 7
-
$10,116 NZD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$11,166 NZD
View
B
Retailer 9
-
$11,673 NZD
View
B
Retailer 10
-
$12,198 NZD
View
B
Retailer 11
-
$13,719 NZD
View
Most Expensive
NZ Jewellers
48fe5017-e10d-4135-8e2c-e8e6e706da67 · Nov 3
$18,676 NZD
$10,353 USD
View
Price under review
11 more retailers have this diamond
Prices start from $8,823 NZDSave up to $4,896 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
$8,823 NZD