Radiant|Natural|GIA

1.20ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 6422630111

Certificate GIA 6422630111

Diamond specifications and retailer prices

From $2,752 USD
As of October 31, 2026
Save $1,437 USD (34%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,189 USD at 77 Diamonds · As of November 1, 2026
View at 77 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6422630111. Listed at 5 retailers as of October 31, 2026, with prices from $2,752 to $4,189, a $1,437 spread on the same certified stone. 77 Diamonds lists it at $4,189. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6422630111
Dimensions7.26 × 5.06 × 3.49 mm
L/W Ratio1.43
Top View
7.26 mm5.06 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6422630111
Side View
Table 64.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: $4,189 USD|Low: $2,588 USD|High: $4,240 USD|Avg: $3,084 USD|+1.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 5$2,752 USD
Retailer 3$2,813 USD
Retailer 2$2,847 USD
Retailer 4$2,871 USD
77 Diamonds$4,189 USD

35 data points across 5 retailers

5 retailers$2,752 USD to $4,189 USD

B+
Cheapest Retailer
-
$2,752 USD
B+
Retailer 2
-
$2,813 USD
View
B+
Retailer 3
-
$2,847 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,871 USD
View
Most Expensive
B
77 Diamonds
RADZMKPDCWFP · Nov 1
$4,189 USD
£3,299 GBP
View
4 more retailers have this diamond
Prices start from $2,752 USDSave up to $1,437 USD

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+
1.20ct Radiant
$2,752 USD