Marquise|Natural|GIA

1.70ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 2155352140

Certificate GIA 2155352140

Diamond specifications and retailer prices

From $5,769 CAD
$4,130 USD
As of October 28, 2026
Save $6,433 CAD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,202 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.7ct natural marquise diamond

This 1.7ct natural marquise sits in the one-and-a-half to two carat band, graded J 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 2155352140. Listed at 15 retailers as of October 28, 2026, with prices from $5,769 to $12,202, a $6,433 spread on the same certified stone. MOH London lists it at $12,202. 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

1.70
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2155352140
Dimensions8.01 × 6.82 × 5.07 mm
L/W Ratio1.17
Culet sizeNone
Top View
8.01 mm6.82 mm1.70 ctJ / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 2155352140
Side View
Table 56.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $12,202 CAD|Low: $5,015 CAD|High: $12,284 CAD|Avg: $7,578 CAD|-0.5%
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
October 31, 2026
Retailer 9$5,769 CAD
Retailer 3$5,903 CAD
Retailer 8$6,018 CAD
Retailer 6$6,094 CAD
Retailer 10$6,371 CAD
Retailer 13$6,496 CAD
Retailer 5$6,842 CAD
Retailer 7$7,435 CAD
Retailer 11$7,682 CAD
Retailer 4$7,959 CAD
Retailer 2$9,366 CAD
Retailer 12$11,034 CAD
MOH London$12,202 CAD

36 data points across 13 retailers

15 retailers$5,769 CAD to $12,202 CAD

A
Cheapest Retailer
-
$5,769 CAD
$4,130 USD
A
Retailer 2
-
$5,903 CAD
$4,226 USD
View
A
Retailer 3
-
$5,954 CAD
$4,262 USD
View
B+
Retailer 4
-
$6,018 CAD
$4,308 USD
View
A
Retailer 5
-
$6,021 CAD
$4,310 USD
View
A
Retailer 6
-
$6,094 CAD
$4,362 USD
View
B+
Retailer 7
-
$6,371 CAD
$4,561 USD
View
Final sale: no returns
B+
Retailer 8
-
$6,496 CAD
$4,650 USD
View
B+
Retailer 9
-
$6,842 CAD
$4,898 USD
View
Retailer 10
-
$6,952 CAD
$4,977 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$7,435 CAD
£4,191 GBP
View
Retailer 12
-
$7,682 CAD
A$8,460 AUD
View
Price last confirmed 21 days ago
B+
Retailer 13
-
$9,366 CAD
ZAR 108,323 ZAR
View
B
Retailer 14
-
$11,034 CAD
$7,899 USD
View
Most Expensive
B
MOH London
7BE6F2E2E · Oct 29
$12,202 CAD
£6,878 GBP
View
14 more retailers have this diamond
Prices start from $5,769 CADSave up to $6,433 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.

A
1.70ct Marquise
$5,769 CAD