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Radiant|Lab Grown|IGI

1.23ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG617406530

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

Certificate IGI LG617406530

Diamond specifications and retailer prices

From $155 USD
As of October 27, 2026
Save $1,335 USD (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,490 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG617406530 or 617406530. Listed at 12 retailers as of October 27, 2026, with prices from $155 to $1,490, a $1,335 spread on the same certified stone. Do Amore Diamonds lists it at $1,490. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617406530
Dimensions7.50 × 5.27 × 3.59 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.50 mm5.27 mm1.23 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617406530
Side View
Table 64.0%Crown 40.3°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 68.1%

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 27
Current: $1,490 USD|Low: $152 USD|High: $1,520 USD|Avg: $620 USD|-2.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 9$155 USD
Retailer 4$177 USD
Retailer 7$180 USD
Retailer 5$261 USD
Retailer 12$351 USD
Retailer 6$517 USD
Retailer 8$652 USD
Retailer 10$682 USD
Retailer 3$713 USD
Retailer 11$730 USD
Retailer 2$997 USD
Do Amore Diamonds$1,490 USD

29 data points across 12 retailers

12 retailers$155 USD to $1,490 USD

A
Cheapest Retailer
-
$155 USD
A
Retailer 2
-
$177 USD
View
Final sale: no returns
A
Retailer 3
-
$180 USD
View
A
Retailer 4
-
$261 USD
£206 GBP
View
B+
Retailer 5
-
$351 USD
View
Retailer 6
-
$517 USD
A$795 AUD
View
Price last confirmed 7 days ago
Retailer 7
-
$652 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$682 USD
View
B+
Retailer 9
-
$713 USD
View
B+
Retailer 10
-
$730 USD
View
B
Retailer 11
-
$997 USD
£785 GBP
View
Most Expensive
B
Do Amore Diamonds
27-C6A123DAF · Oct 29
$1,490 USD
View
11 more retailers have this diamond
Prices start from $155 USDSave up to $1,335 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.

A
1.23ct Radiant
$155 USD