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Marquise|Natural|GIA

1.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2554551416

Certificate GIA 2554551416

Diamond specifications and retailer prices

From $13,220 CAD
$9,464 USD
As of November 2, 2026
Save $9,906 CAD (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $23,127 CAD 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 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 2554551416. Listed at 15 retailers as of November 1, 2026, with prices from $13,220 to $23,127, a $9,906 spread on the same certified stone. MOH London lists it at $23,127. 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554551416
Dimensions11.26 × 5.93 × 3.75 mm
L/W Ratio1.90
Key to symbols
Feather, Crystal, Cloud, Needle, Natural
Top View
11.26 mm5.93 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554551416
Side View
Table 59.0%CrownGirdle: STK-STKPavilionCulet: NoneDepth 63.2%

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: Nov 2
Current: $23,127 CAD|Low: $13,048 CAD|High: $23,405 CAD|Avg: $16,419 CAD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$13,220 CAD
Retailer 4$13,867 CAD
Retailer 10$13,874 CAD
Retailer 9$14,296 CAD
Retailer 5$14,807 CAD
Retailer 2$16,028 CAD
Retailer 8$17,281 CAD
Retailer 6$17,461 CAD
Retailer 11$17,461 CAD
Retailer 3$18,048 CAD
MOH London$23,127 CAD

40 data points across 11 retailers

15 retailers$13,220 CAD to $23,127 CAD

B+
Cheapest Retailer
-
$13,220 CAD
$9,464 USD
B+
Retailer 2
-
$13,867 CAD
$9,927 USD
View
B+
Retailer 3
-
$13,874 CAD
$9,932 USD
View
B+
Retailer 4
-
$14,045 CAD
A$15,468 AUD
View
B+
Retailer 5
-
$14,296 CAD
View
B
Retailer 6
-
$14,807 CAD
$10,600 USD
View
Final sale: no returns
B+
Retailer 7
-
$16,028 CAD
£9,035 GBP
View
Retailer 8
-
$16,042 CAD
$11,484 USD
View
Price last confirmed 43 days ago
B
Retailer 9
-
$17,281 CAD
$12,371 USD
View
B
Retailer 10
-
$17,461 CAD
$12,500 USD
View
B
Retailer 11
-
$17,461 CAD
$12,500 USD
View
B
Retailer 12
-
$18,048 CAD
$12,920 USD
View
Retailer 13
-
$18,510 CAD
$13,251 USD
View
Price last confirmed 44 days ago
Retailer 14
-
$18,510 CAD
$13,251 USD
View
Price last confirmed 48 days ago
Most Expensive
B
MOH London
C3DA0E18E · Nov 1
$23,127 CAD
£13,036 GBP
View
14 more retailers have this diamond
Prices start from $13,220 CADSave up to $9,906 CAD

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
$13,220 CAD