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Round|Lab Grown|IGI

1.40ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG602355145

Shape and cutting style on the report: Round brilliant

Certificate IGI LG602355145

Diamond specifications and retailer prices

From $175 USD
As of October 29, 2026
Save $1,505 USD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,680 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.4ct lab-grown round diamond

This 1.4ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG602355145 or 602355145. Listed at 10 retailers as of October 29, 2026, with prices from $175 to $1,680, a $1,505 spread on the same certified stone. Do Amore Diamonds lists it at $1,680. 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

1.40
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602355145
Dimensions7.18 × 7.26 × 4.39 mm
L/W Ratio1.01
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
7.18 mm7.26 mm1.40 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602355145
Side View
Table 58.0%Crown 33.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
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: Oct 29
Current: $1,680 USD|Low: $140 USD|High: $1,680 USD|Avg: $765 USD|+2.4%
Do Amore Diamonds
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 29, 2026
Retailer 8$175 USD
Retailer 11$194 USD
Retailer 6$203 USD
Retailer 10$386 USD
Retailer 13$434 USD
Retailer 3$538 USD
Retailer 12$544 USD
Retailer 7$736 USD
Retailer 9$769 USD
Retailer 5$1,110 USD
Retailer 2$1,124 USD
Retailer 4$1,419 USD
Do Amore Diamonds$1,680 USD

15 data points across 13 retailers

10 retailers$175 USD to $1,680 USD

A
Cheapest Retailer
-
$175 USD
A
Retailer 2
-
$194 USD
View
Final sale: no returns
A
Retailer 3
-
$203 USD
View
B+
Retailer 4
-
$386 USD
View
B
Retailer 5
-
$736 USD
View
B
Retailer 6
-
$769 USD
View
B
Retailer 7
-
$1,110 USD
View
B
Retailer 8
-
$1,124 USD
£885 GBP
View
B
Retailer 9
-
$1,570 USD
View
Most Expensive
B
Do Amore Diamonds
27-677625FB0 · Oct 29
$1,680 USD
View
9 more retailers have this diamond
Prices start from $175 USDSave up to $1,505 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
1.40ct Round
$175 USD