Radiant|Natural|GIA

1.20ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 2566030662

Certificate GIA 2566030662

Diamond specifications and retailer prices

From $2,393 CAD
$1,713 USD
As of October 25, 2026
Save $1,848 CAD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,241 CAD at Helzberg Diamonds · As of October 25, 2026
View at Helzberg Diamonds

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant 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 2566030662. Listed at 13 retailers as of October 25, 2026, with prices from $2,393 to $4,241, a $1,848 spread on the same certified stone. Helzberg Diamonds lists it at $4,241. 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

1.20
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2566030662
Dimensions7.24 × 5.34 × 3.62 mm
L/W Ratio1.36
Culet sizeNone
Top View
7.24 mm5.34 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2566030662
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.7%

Caratlytics Score

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

Price History

Last verified: Oct 25
Current: $4,241 CAD|Low: $2,313 CAD|High: $4,639 CAD|Avg: $3,157 CAD|-8.6%
Helzberg Diamonds
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 26, 2026
Retailer 9$2,313 CAD
Retailer 10$2,365 CAD
Retailer 7$2,365 CAD
Retailer 8$2,393 CAD
Retailer 2$2,525 CAD
Retailer 4$2,574 CAD
Retailer 13$2,696 CAD
Retailer 11$2,837 CAD
Retailer 3$3,095 CAD
Retailer 6$3,322 CAD
Retailer 5$3,604 CAD
Retailer 12$3,943 CAD
Helzberg Diamonds$4,241 CAD

32 data points across 13 retailers

13 retailers$2,393 CAD to $4,241 CAD

Retailer 1
-
$2,313 CAD
SGD 2,238 SGD
Price last confirmed 7 days ago
Retailer 2
-
$2,365 CAD
$1,693 USD
View
Price last confirmed 7 days ago
Retailer 3
-
$2,365 CAD
$1,693 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$2,393 CAD
$1,713 USD
View
A
Retailer 5
-
$2,525 CAD
£1,423 GBP
View
A
Retailer 6
-
$2,574 CAD
SGD 2,490 SGD
View
A
Retailer 7
-
$2,696 CAD
$1,930 USD
View
Retailer 8
-
$2,837 CAD
$2,031 USD
View
Price last confirmed 7 days ago
Retailer 9
-
$3,095 CAD
$2,215 USD
View
Price last confirmed 7 days ago
A
Retailer 10
-
$3,322 CAD
€2,265 EUR
View
Retailer 11
-
$3,604 CAD
$2,580 USD
View
Price last confirmed 7 days ago
Retailer 12
-
$3,943 CAD
$2,822 USD
View
Price last confirmed 8 days ago
Most Expensive
B+
Helzberg Diamonds
XZRILMMGJGMMI · Oct 25
$4,241 CAD
$3,036 USD
View
12 more retailers have this diamond
Prices start from $2,393 CADSave up to $1,848 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
1.20ct Radiant
$2,393 CAD