Marquise|Natural|GIA

1.21ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 3545470834

Certificate GIA 3545470834

Diamond specifications and retailer prices

From $6,217 CAD
As of November 6, 2026
Save $5,968 CAD (49%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $13,834 CAD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

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 3545470834. Listed at 27 retailers as of November 2, 2026, with a 96% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.94°
Pavilion angle38.52°
OriginNatural
Grading LabGIA
CertificateGIA 3545470834
Dimensions11.52 × 5.23 × 3.31 mm
L/W Ratio2.20
Top View
11.52 mm5.23 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 3545470834
Side View
Table 57.0%Crown 38.94°Girdle: VTK-ETKPavilion 38.52°Culet: NoneDepth 63.3%

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: $8,025 CAD|Low: $6,217 CAD|High: $12,333 CAD|Avg: $8,072 CAD|-1.8%
Retailer 1
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 6, 2026
Retailer 9$6,217 CAD
Retailer 12$6,372 CAD
Retailer 3$6,535 CAD
Retailer 13$6,719 CAD
Retailer 2$6,918 CAD
Retailer 4$7,026 CAD
Retailer 11$7,493 CAD
Retailer 7$7,989 CAD
Retailer 1$8,025 CAD
Retailer 5$8,327 CAD
Retailer 6$8,985 CAD
Retailer 8$10,092 CAD
Retailer 10$12,185 CAD

37 data points across 13 retailers

27 retailers$6,217 CAD to $12,185 CAD

B+
Cheapest Retailer
-
$6,217 CAD
Retailer 2
-
$6,372 CAD
View
Price last confirmed 10 days ago
B
Retailer 3
-
$6,535 CAD
View
B
Retailer 4
-
$6,719 CAD
View
B
Retailer 5
-
$6,918 CAD
View
Final sale: no returns
B
Retailer 6
-
$7,026 CAD
View
B
Retailer 7
-
$7,411 CAD
View
Retailer 8
-
$7,493 CAD
View
Price last confirmed 47 days ago
Retailer 9
-
$7,493 CAD
View
Price last confirmed 9 days ago
Retailer 10
-
$7,493 CAD
View
Price last confirmed 30 days ago
Retailer 11
-
$7,493 CAD
View
Price last confirmed 37 days ago
Retailer 12
-
$7,493 CAD
View
Price last confirmed 30 days ago
B
Retailer 13
-
$7,989 CAD
View
B
Retailer 14
-
$8,025 CAD
View
B
Retailer 15
-
$8,060 CAD
View
B
Retailer 16
-
$8,060 CAD
View
B
Retailer 17
-
$8,327 CAD
View
Retailer 18
-
$8,327 CAD
View
Price last confirmed 34 days ago
B
Retailer 19
-
$8,482 CAD
View
Retailer 20
-
$8,646 CAD
View
Price last confirmed 29 days ago
Retailer 21
-
$8,646 CAD
View
Price last confirmed 47 days ago
B
Retailer 22
-
$8,985 CAD
View
Retailer 23
-
$9,125 CAD
View
Price last confirmed 23 days ago
B
Retailer 24
-
$10,092 CAD
View
B
Retailer 25
-
$12,185 CAD
View
Retailer 26
-
$13,834 CAD
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
459c1db7-adb0-4f6b-b8b4-25e2df4126ac · Sep 29
$13,834 CAD
$9,835 USD
View
Price last confirmed 38 days ago
26 more retailers have this diamond
Prices start from $6,217 CADSave up to $5,968 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
$6,217 CAD