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 $387 NZD
$218 USD
As of October 31, 2026
Save $1,742 NZD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,129 NZD at Brilliant Earth · As of October 31, 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 31, 2026, with prices from $387 to $2,129, a $1,742 spread on the same certified stone. Brilliant Earth lists it at $2,129. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,129 NZD|Low: $387 NZD|High: $2,147 NZD|Avg: $1,158 NZD|-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
November 1, 2026
Retailer 13$387 NZD
Retailer 2$574 NZD
Retailer 9$737 NZD
Retailer 7$745 NZD
Retailer 4$749 NZD
Retailer 6$784 NZD
Retailer 11$846 NZD
Retailer 10$1,047 NZD
Retailer 5$1,277 NZD
Retailer 12$1,386 NZD
Retailer 8$2,019 NZD
Retailer 3$2,090 NZD
Brilliant Earth$2,129 NZD

15 data points across 13 retailers

13 retailers$387 NZD to $2,129 NZD

A
Cheapest Retailer
-
$387 NZD
$218 USD
Final sale: no returns
A
Retailer 2
-
$574 NZD
£255 GBP
View
A
Retailer 3
-
$737 NZD
ZAR 6,713 ZAR
View
A
Retailer 4
-
$745 NZD
€400 EUR
View
A
Retailer 5
-
$749 NZD
$422 USD
View
A
Retailer 6
-
$784 NZD
£348 GBP
View
A
Retailer 7
-
$846 NZD
$477 USD
View
B+
Retailer 8
-
$1,047 NZD
A$908 AUD
View
Retailer 9
-
$1,277 NZD
$720 USD
View
Price last confirmed 14 days ago
B+
Retailer 10
-
$1,386 NZD
$781 USD
View
B
Retailer 11
-
$2,019 NZD
£896 GBP
View
B
Retailer 12
-
$2,090 NZD
$1,178 USD
View
Most Expensive
B
Brilliant Earth
22162818A · Oct 31
$2,129 NZD
$1,200 USD
View
12 more retailers have this diamond
Prices start from $387 NZDSave up to $1,742 NZD

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
$387 NZD