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Marquise|Natural|GIA

1.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 5546565138

Certificate GIA 5546565138

Diamond specifications and retailer prices

From $17,551 NZD
$9,892 USD
As of October 31, 2026
Save $12,267 NZD (41%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $29,819 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded E 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 5546565138. Listed at 12 retailers as of October 31, 2026, with prices from $17,551 to $29,819, a $12,267 spread on the same certified stone. MOH London lists it at $29,819. 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

1.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Crown angle39.97°
Pavilion angle37.22°
OriginNatural
Grading LabGIA
CertificateGIA 5546565138
Dimensions10.72 × 5.81 × 3.80 mm
L/W Ratio1.85
Top View
10.72 mm5.81 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5546565138
Side View
Table 55.0%Crown 39.97°Girdle: ThickPavilion 37.22°Culet: NoneDepth 65.4%

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 31
Current: $29,819 NZD|Low: $17,551 NZD|High: $29,979 NZD|Avg: $22,449 NZD|-0.1%
MOH London
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 12$17,551 NZD
Retailer 10$17,715 NZD
Retailer 11$18,852 NZD
Retailer 5$19,253 NZD
Retailer 14$19,382 NZD
Retailer 8$20,637 NZD
Retailer 15$21,183 NZD
Retailer 13$23,505 NZD
Retailer 3$23,628 NZD
Retailer 7$23,846 NZD
Retailer 2$24,050 NZD
Retailer 6$24,781 NZD
Retailer 4$25,117 NZD
Retailer 9$28,050 NZD
MOH London$29,819 NZD

12 data points across 15 retailers

12 retailers$17,551 NZD to $29,819 NZD

B+
Cheapest Retailer
-
$17,551 NZD
$9,892 USD
B+
Retailer 2
-
$17,715 NZD
$9,984 USD
View
B+
Retailer 3
-
$18,852 NZD
$10,625 USD
View
B+
Retailer 4
-
$19,253 NZD
$10,851 USD
View
B+
Retailer 5
-
$19,382 NZD
CA$15,172 CAD
View
B+
Retailer 6
-
$20,637 NZD
£9,158 GBP
View
B+
Retailer 7
-
$21,183 NZD
$11,939 USD
View
B
Retailer 8
-
$23,505 NZD
$13,247 USD
View
B
Retailer 9
-
$23,628 NZD
$13,317 USD
View
B+
Retailer 10
-
$24,050 NZD
€12,909 EUR
View
B
Retailer 11
-
$28,050 NZD
ZAR 255,395 ZAR
View
Most Expensive
B
MOH London
01F495AAD · Nov 1
$29,819 NZD
£13,233 GBP
View
11 more retailers have this diamond
Prices start from $17,551 NZDSave up to $12,267 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
$17,551 NZD