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Round|Lab Grown|IGI

1.05ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG780647301

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780647301

Diamond specifications and retailer prices

From $160 USD
As of November 1, 2026
Save $905 USD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,065 USD at Reve Diamonds · As of November 1, 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 LG780647301 or 780647301. Listed at 19 retailers as of November 1, 2026, with prices from $160 to $1,065, a $905 spread on the same certified stone. Reve Diamonds lists it at $1,065. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780647301
Dimensions6.61 × 6.63 × 3.96 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.61 mm6.63 mm1.05 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780647301
Side View
Table 59.0%Crown 32.2°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 59.8%

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 1
Current: $338 USD|Low: $153 USD|High: $1,065 USD|Avg: $434 USD|+9.7%
Retailer 1
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Reve Diamonds
November 3, 2026
Retailer 11$160 USD
Retailer 7$179 USD
Retailer 15$185 USD
Retailer 2$198 USD
Retailer 12$198 USD
Retailer 5$295 USD
Retailer 1$338 USD
Retailer 9$347 USD
Retailer 6$359 USD
Retailer 8$385 USD
Retailer 13$410 USD
Retailer 14$636 USD
Retailer 4$672 USD
Retailer 3$680 USD
Retailer 10$925 USD
Reve Diamonds$1,065 USD

36 data points across 16 retailers

19 retailers$160 USD to $1,065 USD

A
Cheapest Retailer
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$160 USD
A
Retailer 2
-
$179 USD
View
Final sale: no returns
A
Retailer 3
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$185 USD
View
Retailer 4
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$198 USD
View
Price last confirmed 12 days ago
A
Retailer 5
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$198 USD
View
A
Retailer 6
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$204 USD
View
A
Retailer 7
-
$295 USD
View
B+
Retailer 8
-
$338 USD
View
B+
Retailer 9
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$347 USD
View
B+
Retailer 10
-
$359 USD
View
B+
Retailer 11
-
$385 USD
View
Retailer 12
-
$410 USD
View
Price last confirmed 12 days ago
B+
Retailer 13
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$442 USD
View
B
Retailer 14
-
$636 USD
View
B
Retailer 15
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$672 USD
View
B
Retailer 16
-
$680 USD
View
B
Retailer 17
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$691 USD
View
B
Retailer 18
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$925 USD
View
Most Expensive
B
Reve Diamonds
911778019 · Nov 1
$1,065 USD
View
18 more retailers have this diamond
Prices start from $160 USDSave up to $905 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
$160 USD