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Marquise|Natural|GIA

1.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2564368871

Certificate GIA 2564368871

Diamond specifications and retailer prices

From $16,848 NZD
SGD 12,810 SGD
As of November 1, 2026
Save $13,350 NZD (44%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $30,198 NZD at With Clarity · As of November 1, 2026
View at With Clarity

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2564368871. Listed at 16 retailers as of November 1, 2026, with prices from $16,848 to $30,198, a $13,350 spread on the same certified stone. With Clarity lists it at $30,198. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.9°
Pavilion angle39.78°
OriginNatural
Grading LabGIA
CertificateGIA 2564368871
Dimensions11.76 × 5.65 × 3.59 mm
L/W Ratio2.08
Culet sizeNone
Top View
11.76 mm5.65 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2564368871
Side View
Table 58.0%Crown 39.9°Girdle: STK-VTKPavilion 39.78°Culet: NDepth 63.5%

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: $21,526 NZD|Low: $16,848 NZD|High: $30,198 NZD|Avg: $20,760 NZD|+0.4%
Retailer 1
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
With Clarity
November 2, 2026
Retailer 6$16,848 NZD
Retailer 2$17,684 NZD
Retailer 10$18,022 NZD
Retailer 7$18,150 NZD
Retailer 11$18,239 NZD
Retailer 15$18,288 NZD
Retailer 14$18,626 NZD
Retailer 4$18,644 NZD
Retailer 8$18,645 NZD
Retailer 5$21,459 NZD
Retailer 1$21,526 NZD
Retailer 13$21,665 NZD
Retailer 12$22,122 NZD
Retailer 9$24,838 NZD
Retailer 3$26,485 NZD
With Clarity$30,198 NZD

29 data points across 16 retailers

16 retailers$16,848 NZD to $30,198 NZD

B+
Cheapest Retailer
-
$16,848 NZD
SGD 12,810 SGD
B+
Retailer 2
-
$17,684 NZD
$9,950 USD
View
B+
Retailer 3
-
$18,022 NZD
$10,140 USD
View
B+
Retailer 4
-
$18,150 NZD
$10,212 USD
View
B+
Retailer 5
-
$18,239 NZD
SGD 13,868 SGD
View
B+
Retailer 6
-
$18,288 NZD
$10,290 USD
View
B+
Retailer 7
-
$18,626 NZD
$10,480 USD
View
B+
Retailer 8
-
$18,644 NZD
$10,490 USD
View
B+
Retailer 9
-
$18,645 NZD
£8,260 GBP
View
B
Retailer 10
-
$21,459 NZD
$12,074 USD
View
B
Retailer 11
-
$21,526 NZD
€11,535 EUR
View
B
Retailer 12
-
$21,665 NZD
$12,190 USD
View
B
Retailer 13
-
$22,122 NZD
$12,447 USD
View
B
Retailer 14
-
$24,838 NZD
$13,975 USD
View
B
Retailer 15
-
$26,485 NZD
$14,902 USD
View
Most Expensive
B
With Clarity
2564368871 · Nov 1
$30,198 NZD
$16,991 USD
View
15 more retailers have this diamond
Prices start from $16,848 NZDSave up to $13,350 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
$16,848 NZD