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Round|Lab Grown|IGI

1.05ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG620431074

Shape and cutting style on the report: Round brilliant

Certificate IGI LG620431074

Diamond specifications and retailer prices

From $225 USD
As of November 5, 2026
Save $976 USD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,201 USD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG620431074 or 620431074. Listed at 18 retailers as of November 4, 2026, with prices from $225 to $1,201, a $976 spread on the same certified stone. Reve Diamonds lists it at $1,201. 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

1.05
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620431074
Dimensions6.56 × 6.58 × 4.00 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
6.56 mm6.58 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620431074
Side View
Table 57.0%Crown 33.5°Girdle: MediumPavilion 41.1°Culet: NoneDepth 60.8%

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: Nov 5
Current: $455 USD|Low: $194 USD|High: $1,201 USD|Avg: $522 USD|+5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
November 6, 2026
Retailer 12$202 USD
Retailer 3$225 USD
Retailer 4$251 USD
Retailer 13$251 USD
Retailer 11$310 USD
Retailer 9$426 USD
Retailer 2$435 USD
Retailer 1$455 USD
Retailer 6$485 USD
Retailer 10$538 USD
Retailer 5$564 USD
Retailer 8$652 USD
Retailer 7$1,169 USD
Reve Diamonds$1,201 USD

41 data points across 14 retailers

18 retailers$225 USD to $1,201 USD

Retailer 1
-
$202 USD
Price last confirmed 17 days ago
A
Retailer 2
-
$225 USD
View
Final sale: no returns
Retailer 3
-
$235 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$251 USD
View
Price last confirmed 21 days ago
Retailer 5
-
$251 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
$310 USD
View
Retailer 7
-
$410 USD
View
Price last confirmed 58 days ago
B+
Retailer 8
-
$426 USD
View
B+
Retailer 9
-
$435 USD
View
B+
Retailer 10
-
$455 USD
View
B+
Retailer 11
-
$485 USD
View
B+
Retailer 12
-
$538 USD
View
B
Retailer 13
-
$564 USD
View
B
Retailer 14
-
$652 USD
View
Retailer 15
-
$807 USD
View
Price last confirmed 16 days ago
B
Retailer 16
-
$860 USD
View
B
Retailer 17
-
$1,169 USD
View
Most Expensive
B
Reve Diamonds
C3DE76E96 · Nov 4
$1,201 USD
View
17 more retailers have this diamond
Prices start from $225 USDSave up to $976 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
1.05ct Round
$225 USD