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Marquise|Natural|GIA

1.50ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 1558626518

Certificate GIA 1558626518

Diamond specifications and retailer prices

From $12,548 NZD
$7,060 USD
As of November 1, 2026
Save $15,825 NZD (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $28,373 NZD at NZ Jewellers · As of November 3, 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 H 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 1558626518. Listed at 13 retailers as of November 1, 2026, with prices from $12,548 to $28,373, a $15,825 spread on the same certified stone. NZ Jewellers lists it at $28,373. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.21°
Pavilion angle42.73°
OriginNatural
Grading LabGIA
CertificateGIA 1558626518
Dimensions10.66 × 6.03 × 3.95 mm
L/W Ratio1.77
Girdle conditionVery Thick
Culet sizeNone
Key to symbols
Feather, Cavity, Cloud, Needle, Indented Natural
Top View
10.66 mm6.03 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558626518
Side View
Table 67.0%Crown 38.21°Girdle: SLI-VTKPavilion 42.73°Culet: NDepth 65.5%

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: $28,373 NZD|Low: $12,548 NZD|High: $28,373 NZD|Avg: $17,482 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 2, 2026
Retailer 8$12,548 NZD
Retailer 12$13,284 NZD
Retailer 11$14,130 NZD
Retailer 10$14,185 NZD
Retailer 3$14,186 NZD
Retailer 7$14,748 NZD
Retailer 4$15,368 NZD
Retailer 13$15,605 NZD
Retailer 9$16,966 NZD
Retailer 5$17,732 NZD
Retailer 2$18,529 NZD
Retailer 6$23,642 NZD
NZ Jewellers$28,373 NZD

32 data points across 13 retailers

13 retailers$12,548 NZD to $28,373 NZD

B+
Cheapest Retailer
-
$12,548 NZD
$7,060 USD
Retailer 2
-
$13,284 NZD
$7,474 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$14,130 NZD
$7,950 USD
View
B+
Retailer 4
-
$14,185 NZD
$7,981 USD
View
Final sale: no returns
B+
Retailer 5
-
$14,186 NZD
$7,982 USD
View
B+
Retailer 6
-
$14,748 NZD
$8,298 USD
View
B
Retailer 7
-
$15,368 NZD
$8,647 USD
View
B
Retailer 8
-
$15,605 NZD
$8,780 USD
View
B
Retailer 9
-
$16,966 NZD
$9,546 USD
View
B
Retailer 10
-
$17,732 NZD
$9,977 USD
View
B
Retailer 11
-
$18,529 NZD
€9,929 EUR
View
B
Retailer 12
-
$23,642 NZD
£10,474 GBP
View
Most Expensive
C
NZ Jewellers
420b6be4-ce89-46d9-b133-d4011d17c83a · Nov 3
$28,373 NZD
$15,964 USD
View
12 more retailers have this diamond
Prices start from $12,548 NZDSave up to $15,825 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
$12,548 NZD