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Marquise|Natural|GIA

1.21ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 1545905349

Certificate GIA 1545905349

Diamond specifications and retailer prices

From $6,069 CAD
As of November 6, 2026
Save $2,342 CAD (28%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,411 CAD at Jared · As of November 4, 2026
View at Jared

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded I 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 1545905349. Listed at 7 retailers as of November 4, 2026, with prices from $6,069 to $8,411, a $2,342 spread on the same certified stone. Jared lists it at $8,411. 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

1.21
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1545905349
Dimensions11.29 × 5.62 × 3.33 mm
L/W Ratio2.01
Girdle conditionFaceted
Key to symbols
Crystal, Feather, Needle
Top View
11.29 mm5.62 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1545905349
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.4%

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 6
Current: $8,411 CAD|Low: $5,383 CAD|High: $8,842 CAD|Avg: $7,589 CAD|-2.0%
Jared
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
Retailer 16
Retailer 17
Retailer 18
October 26, 2026
Retailer 8$5,383 CAD
Retailer 10$5,586 CAD
Retailer 14$6,069 CAD
Retailer 15$6,393 CAD
Retailer 11$6,418 CAD
Retailer 6$7,357 CAD
Retailer 18$7,357 CAD
Retailer 12$7,635 CAD
Retailer 5$7,776 CAD
Retailer 2$8,144 CAD
Retailer 13$8,144 CAD
Retailer 16$8,148 CAD
Jared$8,411 CAD
Retailer 7$8,454 CAD
Retailer 9$8,562 CAD
Retailer 4$8,566 CAD
Retailer 17$8,731 CAD
Retailer 3$8,842 CAD

10 data points across 18 retailers

7 retailers$6,069 CAD to $8,411 CAD

B+
Cheapest Retailer
-
$6,069 CAD
B+
Retailer 2
-
$6,393 CAD
View
Final sale: no returns
B+
Retailer 3
-
$6,418 CAD
View
B
Retailer 4
-
$7,635 CAD
View
B
Retailer 5
-
$8,144 CAD
View
B
Retailer 6
-
$8,144 CAD
View
Most Expensive
B
Jared
159442496 · Nov 4
$8,411 CAD
$5,980 USD
View
6 more retailers have this diamond
Prices start from $6,069 CADSave up to $2,342 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+
1.21ct Marquise
$6,069 CAD