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Radiant|Natural|GIA

1.20ct E SI2 Radiant Natural Diamond

VG • E/SI2 • GIA 2566691646

Certificate GIA 2566691646

Diamond specifications and retailer prices

From $3,935 AUD
As of November 4, 2026
Save $3,550 AUD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,485 AUD at Helzberg Diamonds · As of November 6, 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 E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2566691646. Listed at 11 retailers as of November 4, 2026, with prices from $3,935 to $7,485, a $3,550 spread on the same certified stone. Helzberg Diamonds lists it at $7,485. 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

1.20
Carat
E
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566691646
Dimensions7.00 × 5.39 × 3.71 mm
L/W Ratio1.30
Culet sizeNone
Top View
7.00 mm5.39 mm1.20 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566691646
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.8%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $7,485 AUD|Low: $3,935 AUD|High: $7,485 AUD|Avg: $5,194 AUD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 7$3,935 AUD
Retailer 5$4,031 AUD
Retailer 3$4,242 AUD
Retailer 6$4,279 AUD
Retailer 2$4,596 AUD
Retailer 11$4,740 AUD
Retailer 8$5,066 AUD
Retailer 10$5,196 AUD
Retailer 4$5,242 AUD
Retailer 9$7,108 AUD
Helzberg Diamonds$7,485 AUD

16 data points across 11 retailers

11 retailers$3,935 AUD to $7,485 AUD

A
Cheapest Retailer
-
$3,935 AUD
A
Retailer 2
-
$4,031 AUD
View
A
Retailer 3
-
$4,242 AUD
View
A
Retailer 4
-
$4,279 AUD
View
B+
Retailer 5
-
$4,596 AUD
View
B+
Retailer 6
-
$4,740 AUD
View
B+
Retailer 7
-
$5,066 AUD
View
B+
Retailer 8
-
$5,196 AUD
View
B+
Retailer 9
-
$5,242 AUD
View
B
Retailer 10
-
$7,108 AUD
View
Most Expensive
B
Helzberg Diamonds
XZRILMMMPHMKM · Nov 6
$7,485 AUD
$5,143 USD
View
10 more retailers have this diamond
Prices start from $3,935 AUDSave up to $3,550 AUD

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
$3,935 AUD