Radiant|Lab Grown|IGI

1.23ct E VVS1 Radiant Lab Grown Diamond

ID • E/VVS1 • IGI LG634443011

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

Certificate IGI LG634443011

Diamond specifications and retailer prices

From $299 USD
As of November 1, 2026
Save $232 USD (44%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $990 USD at Rare Carat · As of October 24, 2026
View at Rare Carat

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 top-tier cut grade and certified by IGI LG634443011 or 634443011. Listed at 3 retailers as of October 31, 2026, with a 78% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634443011
Dimensions7.85 × 5.19 × 3.53 mm
L/W Ratio1.51
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.85 mm5.19 mm1.23 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634443011
Side View
Table 65.0%Crown 44.4°Girdle: MediumPavilion 34.3°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $990 USD|Low: $154 USD|High: $1,860 USD|Avg: $759 USD|-0.1%
Rare Carat
Retailer 2
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October 18, 2026
Retailer 14$154 USD
Retailer 10$299 USD
Retailer 7$371 USD
Retailer 12$460 USD
Retailer 6$502 USD
Retailer 2$531 USD
Retailer 3$556 USD
Retailer 15$594 USD
Retailer 11$634 USD
Retailer 8$837 USD
Rare Carat$990 USD
Retailer 4$1,022 USD
Retailer 16$1,036 USD
Retailer 9$1,150 USD
Retailer 5$1,173 USD
Retailer 13$1,860 USD

7 data points across 16 retailers

3 retailers$299 USD to $531 USD

B+
Cheapest Retailer
-
$299 USD
B+
Retailer 2
-
$531 USD
View
Most Expensive
Rare Carat
A13-26 · Oct 21
$990 USD
View
Price last confirmed 7 days ago
2 more retailers have this diamond
Prices start from $299 USDSave up to $232 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.

B+
1.23ct Radiant
$299 USD