CaratHunter
Plans
Marquise|Natural|GIA

1.51ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 2548785636

Certificate GIA 2548785636

Diamond specifications and retailer prices

From $18,292 NZD
$10,292 USD
As of October 28, 2026
Save $15,429 NZD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $33,721 NZD at NZ Jewellers · As of October 27, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2548785636. Listed at 15 retailers as of October 27, 2026, with prices from $18,292 to $33,721, a $15,429 spread on the same certified stone. NZ Jewellers lists it at $33,721. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2548785636
Dimensions11.46 × 5.96 × 3.77 mm
L/W Ratio1.92
Top View
11.46 mm5.96 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2548785636
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 63.2%

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: Oct 28
Current: $33,721 NZD|Low: $17,267 NZD|High: $33,721 NZD|Avg: $23,112 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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 29, 2026
Retailer 14$17,267 NZD
Retailer 19$18,292 NZD
Retailer 12$18,632 NZD
Retailer 17$19,391 NZD
Retailer 20$19,716 NZD
Retailer 16$20,233 NZD
Retailer 10$20,990 NZD
Retailer 4$21,194 NZD
Retailer 18$22,010 NZD
Retailer 2$22,099 NZD
Retailer 6$22,593 NZD
Retailer 21$23,640 NZD
Retailer 9$23,648 NZD
Retailer 5$23,745 NZD
Retailer 8$23,745 NZD
Retailer 7$24,527 NZD
Retailer 15$24,613 NZD
Retailer 3$24,928 NZD
Retailer 11$26,804 NZD
Retailer 13$31,767 NZD
NZ Jewellers$33,721 NZD

14 data points across 21 retailers

15 retailers$18,292 NZD to $33,721 NZD

A
Cheapest Retailer
-
$18,292 NZD
$10,292 USD
B+
Retailer 2
-
$19,391 NZD
CA$15,154 CAD
View
B+
Retailer 3
-
$19,716 NZD
$11,093 USD
View
B+
Retailer 4
-
$21,194 NZD
$11,925 USD
View
B+
Retailer 5
-
$22,010 NZD
$12,384 USD
View
B+
Retailer 6
-
$22,099 NZD
£9,791 GBP
View
B
Retailer 7
-
$22,593 NZD
$12,712 USD
View
B+
Retailer 8
-
$23,640 NZD
$13,301 USD
View
B+
Retailer 9
-
$23,745 NZD
$13,360 USD
View
B+
Retailer 10
-
$23,745 NZD
$13,360 USD
View
B+
Retailer 11
-
$24,527 NZD
$13,800 USD
View
B+
Retailer 12
-
$24,613 NZD
€13,189 EUR
View
B
Retailer 13
-
$24,928 NZD
$14,026 USD
View
B
Retailer 14
-
$31,767 NZD
£14,074 GBP
View
Most Expensive
B
NZ Jewellers
be492634-6ba2-4243-8d8b-db70219f853b · Oct 27
$33,721 NZD
$18,973 USD
View
14 more retailers have this diamond
Prices start from $18,292 NZDSave up to $15,429 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
$18,292 NZD