Marquise|Natural|GIA

2.51ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 1553744455

Certificate GIA 1553744455

Diamond specifications and retailer prices

From $29,153 CAD
$20,870 USD
As of October 26, 2026
Save $20,441 CAD (41%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $49,594 CAD at MOH London · As of October 26, 2026
View at MOH London

About this 2.51ct natural marquise diamond

This 2.51ct natural marquise sits in the two to three carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1553744455. Listed at 25 retailers as of October 26, 2026, with prices from $29,153 to $49,594, a $20,441 spread on the same certified stone. MOH London lists it at $49,594. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
I
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.16°
Pavilion angle39.4°
OriginNatural
Grading LabGIA
CertificateGIA 1553744455
Dimensions12.40 × 6.80 × 4.60 mm
L/W Ratio1.82
Culet sizeNone
Top View
12.40 mm6.80 mm2.51 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553744455
Side View
Table 58.0%Crown 43.16°Girdle: STK-VTKPavilion 39.4°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $49,594 CAD|Low: $25,507 CAD|High: $50,124 CAD|Avg: $33,183 CAD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9$29,153 CAD
Retailer 8$29,624 CAD
Retailer 2$29,996 CAD
Retailer 7$30,391 CAD
Retailer 5$30,609 CAD
Retailer 3$32,028 CAD
Retailer 4$36,937 CAD
Retailer 6$38,160 CAD
MOH London$49,594 CAD

44 data points across 9 retailers

25 retailers$29,153 CAD to $49,594 CAD

B+
Cheapest Retailer
-
$29,153 CAD
$20,870 USD
Retailer 2
-
$29,385 CAD
$21,036 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$29,624 CAD
$21,207 USD
View
B+
Retailer 4
-
$29,996 CAD
₹2,045,055 INR
View
B+
Retailer 5
-
$30,055 CAD
A$33,101 AUD
View
B+
Retailer 6
-
$30,609 CAD
$21,912 USD
View
Retailer 7
-
$31,712 CAD
$22,702 USD
View
Price last confirmed 24 days ago
B+
Retailer 8
-
$32,028 CAD
£18,054 GBP
View
B+
Retailer 9
-
$32,159 CAD
$23,022 USD
View
Retailer 10
-
$33,298 CAD
$23,837 USD
View
Price last confirmed 31 days ago
Retailer 11
-
$33,891 CAD
$24,262 USD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
$34,056 CAD
$24,380 USD
View
B+
Retailer 13
-
$34,056 CAD
$24,380 USD
View
Retailer 14
-
$34,355 CAD
$24,594 USD
View
Price last confirmed 24 days ago
Retailer 15
-
$34,355 CAD
$24,594 USD
View
Price last confirmed 37 days ago
B+
Retailer 16
-
$34,729 CAD
A$38,248 AUD
View
B
Retailer 17
-
$35,188 CAD
$25,190 USD
View
Retailer 18
-
$35,677 CAD
$25,540 USD
View
Price last confirmed 55 days ago
Retailer 19
-
$35,677 CAD
$25,540 USD
View
Price last confirmed 32 days ago
Retailer 20
-
$36,153 CAD
$25,881 USD
View
Price last confirmed 9 days ago
B
Retailer 21
-
$36,937 CAD
€25,183 EUR
View
Retailer 22
-
$38,160 CAD
$27,317 USD
View
Price last confirmed 8 days ago
Retailer 23
-
$44,926 CAD
$32,161 USD
View
Price last confirmed 37 days ago
Retailer 24
-
$44,926 CAD
$32,161 USD
View
Price last confirmed 32 days ago
Most Expensive
B
MOH London
3DD4EB45D · Oct 26
$49,594 CAD
£27,955 GBP
View
24 more retailers have this diamond
Prices start from $29,153 CADSave up to $20,441 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+
2.51ct Marquise
$29,153 CAD