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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 $287 SGD
As of November 5, 2026
Save $1,247 SGD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,534 SGD 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 $287 to $1,534, a $1,247 spread on the same certified stone. Reve Diamonds lists it at $1,534. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $581 SGD|Low: $248 SGD|High: $1,534 SGD|Avg: $667 SGD|+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$258 SGD
Retailer 3$287 SGD
Retailer 4$321 SGD
Retailer 13$321 SGD
Retailer 11$396 SGD
Retailer 9$544 SGD
Retailer 2$556 SGD
Retailer 1$581 SGD
Retailer 6$619 SGD
Retailer 10$687 SGD
Retailer 5$720 SGD
Retailer 8$833 SGD
Retailer 7$1,493 SGD
Reve Diamonds$1,534 SGD

41 data points across 14 retailers

18 retailers$287 SGD to $1,534 SGD

Retailer 1
-
$258 SGD
Price last confirmed 17 days ago
A
Retailer 2
-
$287 SGD
View
Final sale: no returns
Retailer 3
-
$300 SGD
View
Price last confirmed 17 days ago
Retailer 4
-
$321 SGD
View
Price last confirmed 21 days ago
Retailer 5
-
$321 SGD
View
Price last confirmed 16 days ago
A
Retailer 6
-
$396 SGD
View
Retailer 7
-
$524 SGD
View
Price last confirmed 58 days ago
B+
Retailer 8
-
$544 SGD
View
B+
Retailer 9
-
$556 SGD
View
B+
Retailer 10
-
$581 SGD
View
B+
Retailer 11
-
$619 SGD
View
B+
Retailer 12
-
$687 SGD
View
B
Retailer 13
-
$720 SGD
View
B
Retailer 14
-
$833 SGD
View
Retailer 15
-
$1,031 SGD
View
Price last confirmed 16 days ago
B
Retailer 16
-
$1,098 SGD
View
B
Retailer 17
-
$1,493 SGD
View
Most Expensive
B
Reve Diamonds
C3DE76E96 · Nov 4
$1,534 SGD
$1,201 USD
View
17 more retailers have this diamond
Prices start from $287 SGDSave up to $1,247 SGD

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
$287 SGD