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Marquise|Natural|GIA

1.50ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 2554854633

Certificate GIA 2554854633

Diamond specifications and retailer prices

From $12,050 NZD
$6,780 USD
As of November 1, 2026
Save $14,273 NZD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $26,324 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2554854633. Listed at 15 retailers as of October 30, 2026, with prices from $12,050 to $26,324, a $14,273 spread on the same certified stone. NZ Jewellers lists it at $26,324. 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

1.50
Carat
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554854633
Dimensions13.08 × 5.79 × 3.32 mm
L/W Ratio2.26
Culet sizeNone
Top View
13.08 mm5.79 mm1.50 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554854633
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 57.3%

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 1
Current: $26,324 NZD|Low: $12,050 NZD|High: $26,324 NZD|Avg: $15,656 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
November 2, 2026
Retailer 11$12,050 NZD
Retailer 15$12,320 NZD
Retailer 14$12,324 NZD
Retailer 13$13,161 NZD
Retailer 3$13,271 NZD
Retailer 6$14,021 NZD
Retailer 4$14,259 NZD
Retailer 12$14,478 NZD
Retailer 9$14,550 NZD
Retailer 2$15,351 NZD
Retailer 5$16,452 NZD
Retailer 8$17,193 NZD
Retailer 7$17,332 NZD
Retailer 10$21,935 NZD
NZ Jewellers$26,324 NZD

33 data points across 15 retailers

15 retailers$12,050 NZD to $26,324 NZD

B+
Cheapest Retailer
-
$12,050 NZD
$6,780 USD
B+
Retailer 2
-
$12,320 NZD
$6,932 USD
View
B+
Retailer 3
-
$12,324 NZD
$6,934 USD
View
Retailer 4
-
$13,161 NZD
$7,405 USD
View
Price last confirmed 17 days ago
B+
Retailer 5
-
$13,271 NZD
$7,467 USD
View
B
Retailer 6
-
$14,021 NZD
$7,889 USD
View
B
Retailer 7
-
$14,259 NZD
$8,023 USD
View
B
Retailer 8
-
$14,478 NZD
$8,146 USD
View
B
Retailer 9
-
$14,550 NZD
£6,446 GBP
View
B
Retailer 10
-
$15,351 NZD
£6,801 GBP
View
B
Retailer 11
-
$16,452 NZD
$9,257 USD
View
B
Retailer 12
-
$17,193 NZD
€9,213 EUR
View
Retailer 13
-
$17,332 NZD
$9,752 USD
View
Price last confirmed 18 days ago
B
Retailer 14
-
$21,935 NZD
£9,718 GBP
View
Most Expensive
C
NZ Jewellers
150c9ee6-7095-4d96-b34d-863aac97d91e · Oct 30
$26,324 NZD
$14,811 USD
View
14 more retailers have this diamond
Prices start from $12,050 NZDSave up to $14,273 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+
1.50ct Marquise
$12,050 NZD