Marquise|Natural|GIA

1.51ct I SI1 Marquise Natural Diamond

VG • I/SI1 • GIA 3555701460

Certificate GIA 3555701460

Diamond specifications and retailer prices

From $13,880 NZD
£6,149 GBP
As of October 28, 2026
Save $10,866 NZD (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $24,745 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555701460. Listed at 17 retailers as of October 27, 2026, with prices from $13,880 to $24,745, a $10,866 spread on the same certified stone. NZ Jewellers lists it at $24,745. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555701460
Dimensions10.84 × 5.93 × 3.98 mm
L/W Ratio1.83
Culet sizeNone
Top View
10.84 mm5.93 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3555701460
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.2%

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: Oct 28
Current: $24,745 NZD|Low: $10,724 NZD|High: $24,745 NZD|Avg: $14,719 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 2, 2026
Retailer 5$10,836 NZD
Retailer 15$11,019 NZD
Retailer 16$11,689 NZD
Retailer 9$12,308 NZD
Retailer 4$12,372 NZD
Retailer 17$12,379 NZD
Retailer 14$12,921 NZD
Retailer 6$13,403 NZD
Retailer 3$13,609 NZD
Retailer 11$13,880 NZD
Retailer 13$14,187 NZD
Retailer 7$15,466 NZD
Retailer 8$16,296 NZD
Retailer 2$18,535 NZD
Retailer 10$19,054 NZD
Retailer 12$20,646 NZD
NZ Jewellers$24,745 NZD

41 data points across 17 retailers

17 retailers$13,880 NZD to $24,745 NZD

Retailer 1
-
$10,836 NZD
$6,097 USD
Price last confirmed 7 days ago
Retailer 2
-
$11,019 NZD
$6,200 USD
View
Price last confirmed 12 days ago
Retailer 3
-
$11,689 NZD
$6,577 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
$12,308 NZD
CA$9,618 CAD
View
Price last confirmed 7 days ago
Retailer 5
-
$12,372 NZD
$6,961 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$12,379 NZD
$6,965 USD
View
Price last confirmed 5 days ago
Retailer 7
-
$12,921 NZD
$7,270 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$13,403 NZD
$7,541 USD
View
Price last confirmed 7 days ago
Retailer 9
-
$13,609 NZD
$7,657 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$13,880 NZD
£6,149 GBP
View
Retailer 11
-
$14,187 NZD
A$12,280 AUD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$15,466 NZD
$8,702 USD
View
Retailer 13
-
$16,296 NZD
$9,169 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
$18,535 NZD
€9,932 EUR
View
B
Retailer 15
-
$19,054 NZD
$10,721 USD
View
Retailer 16
-
$20,646 NZD
£9,147 GBP
View
Price last confirmed 8 days ago
Most Expensive
C
NZ Jewellers
9c0ebc06-2c37-4178-9adb-c416275a27cf · Oct 27
$24,745 NZD
$13,923 USD
View
16 more retailers have this diamond
Prices start from $13,880 NZDSave up to $10,866 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
$13,880 NZD