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Round|Lab Grown|IGI

1.25ct J VS1 Round Lab Grown Diamond

EX • J/VS1 • IGI LG447001340

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447001340

Diamond specifications and retailer prices

From $710 USD
As of October 30, 2026
Save $4,202 USD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,912 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG447001340 or 447001340. Listed at 13 retailers as of October 29, 2026, with prices from $710 to $4,912, a $4,202 spread on the same certified stone. MOH London lists it at $4,912. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
J
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447001340
Dimensions6.79 × 6.82 × 4.31 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.79 mm6.82 mm1.25 ctJ / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447001340
Side View
Table 58.0%Crown 36.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.2%

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 30
Current: $4,912 USD|Low: $710 USD|High: $4,952 USD|Avg: $2,214 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 2$710 USD
Retailer 9$1,311 USD
Retailer 14$1,427 USD
Retailer 13$1,469 USD
Retailer 10$1,521 USD
Retailer 12$1,521 USD
Retailer 4$1,695 USD
Retailer 5$2,084 USD
Retailer 11$2,406 USD
Retailer 8$2,796 USD
Retailer 6$2,835 USD
Retailer 3$2,851 USD
Retailer 7$3,358 USD
MOH London$4,912 USD

41 data points across 14 retailers

13 retailers$710 USD to $4,912 USD

A
Cheapest Retailer
-
$710 USD
B+
Retailer 2
-
$1,311 USD
View
B+
Retailer 3
-
$1,427 USD
View
B
Retailer 4
-
$1,469 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,521 USD
View
Retailer 6
-
$1,521 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$1,695 USD
View
B
Retailer 8
-
$2,406 USD
View
B
Retailer 9
-
$2,796 USD
ZAR 45,169 ZAR
View
B
Retailer 10
-
$2,835 USD
View
B
Retailer 11
-
$2,851 USD
View
B
Retailer 12
-
$3,358 USD
£2,644 GBP
View
Most Expensive
B
MOH London
LG447001340 · Oct 29
$4,912 USD
£3,868 GBP
View
12 more retailers have this diamond
Prices start from $710 USDSave up to $4,202 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
1.25ct Round
$710 USD