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Round|Lab Grown|IGI

1.01ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG455035513

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455035513

Diamond specifications and retailer prices

From $580 USD
As of October 30, 2026
Save $3,149 USD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,729 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.01ct lab-grown round diamond

This 1.01ct lab-grown round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG455035513 or 455035513. Listed at 13 retailers as of October 29, 2026, with prices from $580 to $3,729, a $3,149 spread on the same certified stone. MOH London lists it at $3,729. 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

1.01
Carat
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455035513
Dimensions6.39 × 6.42 × 4.01 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.39 mm6.42 mm1.01 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG455035513
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.5%

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: $3,729 USD|Low: $580 USD|High: $3,759 USD|Avg: $1,591 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
October 30, 2026
Retailer 2$580 USD
Retailer 9$943 USD
Retailer 5$1,026 USD
Retailer 4$1,056 USD
Retailer 10$1,094 USD
Retailer 12$1,094 USD
Retailer 6$1,266 USD
Retailer 13$1,406 USD
Retailer 11$1,751 USD
Retailer 7$1,881 USD
Retailer 8$2,357 USD
Retailer 3$3,075 USD
MOH London$3,729 USD

43 data points across 13 retailers

13 retailers$580 USD to $3,729 USD

A
Cheapest Retailer
-
$580 USD
B+
Retailer 2
-
$943 USD
View
B+
Retailer 3
-
$1,026 USD
View
B+
Retailer 4
-
$1,056 USD
View
Final sale: no returns
Retailer 5
-
$1,094 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$1,094 USD
View
B+
Retailer 7
-
$1,266 USD
£997 GBP
View
B+
Retailer 8
-
$1,270 USD
View
B
Retailer 9
-
$1,751 USD
View
B
Retailer 10
-
$1,881 USD
€1,791 EUR
View
B
Retailer 11
-
$2,357 USD
View
B
Retailer 12
-
$3,075 USD
View
Most Expensive
B
MOH London
LG455035513 · Oct 29
$3,729 USD
£2,936 GBP
View
12 more retailers have this diamond
Prices start from $580 USDSave up to $3,149 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
1.01ct Round
$580 USD