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Marquise|Natural|GIA

1.51ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 1186263478

Certificate GIA 1186263478

Diamond specifications and retailer prices

From $12,093 CAD
$8,657 USD
As of October 30, 2026
Save $9,699 CAD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $21,792 CAD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1186263478. Listed at 14 retailers as of October 30, 2026, with prices from $12,093 to $21,792, a $9,699 spread on the same certified stone. NZ Jewellers lists it at $21,792. 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

1.51
Carat
G
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1186263478
Dimensions10.65 × 6.09 × 3.81 mm
L/W Ratio1.75
Culet sizeSmall
Top View
10.65 mm6.09 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1186263478
Side View
Table 58.0%CrownGirdle: THN-VTKPavilionCulet: SmallDepth 62.5%

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: Oct 30
Current: $21,792 CAD|Low: $12,093 CAD|High: $21,792 CAD|Avg: $15,734 CAD
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 1, 2026
Retailer 4$12,093 CAD
Retailer 5$12,678 CAD
Retailer 9$13,075 CAD
Retailer 3$13,184 CAD
Retailer 10$14,165 CAD
Retailer 6$14,309 CAD
Retailer 8$14,382 CAD
Retailer 7$15,718 CAD
Retailer 11$16,344 CAD
Retailer 12$17,207 CAD
Retailer 13$18,780 CAD
Retailer 2$20,419 CAD
NZ Jewellers$21,792 CAD

41 data points across 13 retailers

14 retailers$12,093 CAD to $21,792 CAD

B+
Cheapest Retailer
-
$12,093 CAD
$8,657 USD
B+
Retailer 2
-
$12,241 CAD
$8,763 USD
View
B+
Retailer 3
-
$12,678 CAD
View
B+
Retailer 4
-
$13,075 CAD
$9,360 USD
View
B+
Retailer 5
-
$13,184 CAD
$9,438 USD
View
B+
Retailer 6
-
$14,165 CAD
$10,140 USD
View
B+
Retailer 7
-
$14,309 CAD
£8,066 GBP
View
B+
Retailer 8
-
$14,382 CAD
$10,296 USD
View
B
Retailer 9
-
$15,073 CAD
$10,790 USD
View
B
Retailer 10
-
$15,718 CAD
€10,716 EUR
View
B
Retailer 11
-
$16,344 CAD
$11,700 USD
View
Retailer 12
-
$17,207 CAD
$12,318 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
$20,419 CAD
£11,510 GBP
View
Most Expensive
B
NZ Jewellers
820b5d22-e9e2-4532-819b-2b1403d0e7c4 · Oct 30
$21,792 CAD
$15,600 USD
View
13 more retailers have this diamond
Prices start from $12,093 CADSave up to $9,699 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+
1.51ct Marquise
$12,093 CAD