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Radiant|Lab Grown|IGI

1.23ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG805676250

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG805676250

Diamond specifications and retailer prices

From $310 AUD
$218 USD
As of October 31, 2026
Save $1,398 AUD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,708 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG805676250 or 805676250. Listed at 13 retailers as of October 30, 2026, with prices from $310 to $1,708, a $1,398 spread on the same certified stone. Brilliant Earth lists it at $1,708. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805676250
Dimensions7.54 × 5.25 × 3.60 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.54 mm5.25 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805676250
Side View
Table 64.0%Crown 43°Girdle: MediumPavilion 35.1°Culet: NoneDepth 68.6%

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 31
Current: $1,708 AUD|Low: $310 AUD|High: $1,723 AUD|Avg: $931 AUD|-0.8%
Brilliant Earth
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 31, 2026
Retailer 13$310 AUD
Retailer 6$462 AUD
Retailer 9$592 AUD
Retailer 2$598 AUD
Retailer 4$601 AUD
Retailer 7$629 AUD
Retailer 11$679 AUD
Retailer 10$840 AUD
Retailer 5$1,025 AUD
Retailer 12$1,112 AUD
Retailer 8$1,620 AUD
Retailer 3$1,677 AUD
Brilliant Earth$1,708 AUD

14 data points across 13 retailers

13 retailers$310 AUD to $1,708 AUD

A
Cheapest Retailer
-
$310 AUD
$218 USD
Final sale: no returns
A
Retailer 2
-
$462 AUD
£255 GBP
View
A
Retailer 3
-
$592 AUD
ZAR 6,713 ZAR
View
A
Retailer 4
-
$598 AUD
€400 EUR
View
A
Retailer 5
-
$601 AUD
$422 USD
View
A
Retailer 6
-
$629 AUD
£348 GBP
View
A
Retailer 7
-
$679 AUD
$477 USD
View
B+
Retailer 8
-
$840 AUD
View
Retailer 9
-
$1,025 AUD
$720 USD
View
Price last confirmed 12 days ago
B+
Retailer 10
-
$1,112 AUD
$781 USD
View
B
Retailer 11
-
$1,620 AUD
£896 GBP
View
B
Retailer 12
-
$1,677 AUD
$1,178 USD
View
Most Expensive
B
Brilliant Earth
22162818A · Oct 30
$1,708 AUD
$1,200 USD
View
12 more retailers have this diamond
Prices start from $310 AUDSave up to $1,398 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
$310 AUD