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Round|Lab Grown|IGI

1.24ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG681502971

Shape and cutting style on the report: Round brilliant

Certificate IGI LG681502971

Diamond specifications and retailer prices

From $364 USD
As of November 5, 2026
Save $606 USD (62%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $970 USD at MOH London · As of November 1, 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 LG681502971 or 681502971. Listed at 15 retailers as of November 1, 2026, with prices from $364 to $970, a $606 spread on the same certified stone. MOH London lists it at $970. 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 angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681502971
Dimensions6.81 × 6.79 × 4.32 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.81 mm6.79 mm1.24 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681502971
Side View
Table 58.0%Crown 36.1°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.5%

Caratlytics Score

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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: Nov 5
Current: $970 USD|Low: $207 USD|High: $982 USD|Avg: $480 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 8$207 USD
Retailer 3$364 USD
Retailer 6$370 USD
Retailer 9$373 USD
Retailer 2$407 USD
Retailer 10$458 USD
Retailer 5$485 USD
Retailer 7$590 USD
Retailer 4$704 USD
MOH London$970 USD

41 data points across 10 retailers

15 retailers$364 USD to $970 USD

Retailer 1
-
$167 USD
Price last confirmed 41 days ago
Retailer 2
-
$194 USD
View
Price last confirmed 45 days ago
Retailer 3
-
$205 USD
View
Price last confirmed 42 days ago
Retailer 4
-
$207 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$364 USD
View
A
Retailer 6
-
$373 USD
View
B+
Retailer 7
-
$393 USD
View
A
Retailer 8
-
$407 USD
View
B+
Retailer 9
-
$458 USD
View
Retailer 10
-
$480 USD
View
Price last confirmed 19 days ago
B+
Retailer 11
-
$485 USD
View
Retailer 12
-
$590 USD
View
Price last confirmed 19 days ago
Retailer 13
-
$667 USD
View
Price last confirmed 41 days ago
B
Retailer 14
-
$704 USD
View
Most Expensive
B
MOH London
LG681502971 · Nov 1
$970 USD
£764 GBP
View
14 more retailers have this diamond
Prices start from $364 USDSave up to $606 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
1.24ct Round
$364 USD