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Round|Lab Grown|IGI

1.24ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG494172698

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494172698

Diamond specifications and retailer prices

From $475 USD
As of November 5, 2026
Save $334 USD (41%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,944 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.24ct lab-grown round diamond

This 1.24ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494172698 or 494172698. Listed at 6 retailers as of November 5, 2026, with a 70% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.24
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494172698
Dimensions6.84 × 6.80 × 4.33 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.84 mm6.80 mm1.24 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494172698
Side View
Table 56.0%Crown 36.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $1,944 USD|Low: $475 USD|High: $1,972 USD|Avg: $890 USD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$475 USD
Retailer 4$600 USD
Retailer 2$762 USD
Retailer 5$791 USD
Retailer 3$809 USD
MOH London$1,944 USD

42 data points across 6 retailers

6 retailers$475 USD to $809 USD

B+
Cheapest Retailer
-
$475 USD
B+
Retailer 2
-
$600 USD
View
B
Retailer 3
-
$762 USD
View
B
Retailer 4
-
$791 USD
View
B
Retailer 5
-
$809 USD
View
Most Expensive
MOH London
LG494172698 · Nov 5
$1,944 USD
£1,531 GBP
View
Price under review
5 more retailers have this diamond
Prices start from $475 USDSave up to $334 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+
1.24ct Round
$475 USD