Radiant|Lab Grown|IGI

1.23ct E VVS1 Radiant Lab Grown Diamond

GD • E/VVS1

Diamond specifications and retailer prices

From $251 AUD
$176 USD
As of October 30, 2026
Save $746 AUD (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,340 AUD at Helzberg Diamonds · As of October 13, 2026
View at Helzberg Diamonds

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a standard cut grade and certified by IGI. Listed at 11 retailers as of October 28, 2026, with a 298% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.23
Carat
E
Colour
VVS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.17 × 5.10 × 3.40 mm
L/W Ratio1.60
Top View
8.17 mm5.10 mm1.23 ctE / VVS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 68.0%CrownGirdle: MediumPavilionCulet: NoneDepth 66.7%

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 30
Current: $2,340 AUD|Low: $251 AUD|High: $2,340 AUD|Avg: $860 AUD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 3$251 AUD
Retailer 6$292 AUD
Retailer 4$310 AUD
Retailer 7$313 AUD
Retailer 2$772 AUD
Retailer 5$997 AUD
Helzberg Diamonds$2,340 AUD

12 data points across 7 retailers

11 retailers$251 AUD to $997 AUD

A
Cheapest Retailer
-
$251 AUD
$176 USD
Retailer 2
-
$252 AUD
$177 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$252 AUD
$177 USD
View
Retailer 4
-
$292 AUD
$205 USD
View
Price last confirmed 10 days ago
B+
Retailer 5
-
$310 AUD
$218 USD
View
Retailer 6
-
$312 AUD
$219 USD
View
Price last confirmed 11 days ago
Retailer 7
-
$313 AUD
$220 USD
View
Price last confirmed 14 days ago
B+
Retailer 8
-
$772 AUD
$542 USD
View
B
Retailer 9
-
$997 AUD
$700 USD
View
Retailer 10
-
$1,002 AUD
$704 USD
View
Price last confirmed 11 days ago
Most Expensive
Helzberg Diamonds
ZXZOJPMPLKGJ · Oct 13
$2,340 AUD
$1,644 USD
View
Price last confirmed 17 days ago
10 more retailers have this diamond
Prices start from $251 AUDSave up to $746 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
1.23ct Radiant
$251 AUD