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Round|Lab Grown|IGI

1.00ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG739579235

Shape and cutting style on the report: Round brilliant

Certificate IGI LG739579235

Diamond specifications and retailer prices

From $158 USD
As of October 29, 2026
Save $900 USD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,058 USD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 1ct lab-grown round diamond

This 1ct 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 LG739579235 or 739579235. Listed at 22 retailers as of October 28, 2026, with prices from $158 to $1,058, a $900 spread on the same certified stone. Reve Diamonds lists it at $1,058. 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

1.00
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739579235
Dimensions6.43 × 6.46 × 3.94 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
6.43 mm6.46 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739579235
Side View
Table 58.0%Crown 33°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.2%

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: $342 USD|Low: $156 USD|High: $1,058 USD|Avg: $423 USD|+7.5%
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
Retailer 14
Retailer 15
Reve Diamonds
October 30, 2026
Retailer 6$158 USD
Retailer 14$176 USD
Retailer 10$183 USD
Retailer 3$195 USD
Retailer 15$195 USD
Retailer 1$342 USD
Retailer 2$355 USD
Retailer 9$381 USD
Retailer 13$438 USD
Retailer 12$460 USD
Retailer 11$480 USD
Retailer 4$533 USD
Retailer 7$628 USD
Retailer 5$683 USD
Retailer 8$919 USD
Reve Diamonds$1,058 USD

45 data points across 16 retailers

22 retailers$158 USD to $1,058 USD

Retailer 1
-
$156 USD
Price last confirmed 37 days ago
A
Retailer 2
-
$158 USD
View
A
Retailer 3
-
$176 USD
View
Final sale: no returns
A
Retailer 4
-
$183 USD
View
Retailer 5
-
$191 USD
View
Price last confirmed 38 days ago
A
Retailer 6
-
$195 USD
View
A
Retailer 7
-
$195 USD
View
A
Retailer 8
-
$274 USD
View
B+
Retailer 9
-
$342 USD
£270 GBP
View
B+
Retailer 10
-
$355 USD
View
B+
Retailer 11
-
$381 USD
€363 EUR
View
Retailer 12
-
$405 USD
View
Price last confirmed 87 days ago
B+
Retailer 13
-
$438 USD
View
Retailer 14
-
$460 USD
View
Price last confirmed 13 days ago
B+
Retailer 15
-
$480 USD
A$738 AUD
View
B
Retailer 16
-
$533 USD
View
Retailer 17
-
$596 USD
View
Price last confirmed 38 days ago
Retailer 18
-
$623 USD
View
Price last confirmed 39 days ago
B
Retailer 19
-
$628 USD
View
B
Retailer 20
-
$683 USD
View
B
Retailer 21
-
$919 USD
£724 GBP
View
Most Expensive
B
Reve Diamonds
C2E712A44 · Oct 28
$1,058 USD
View
21 more retailers have this diamond
Prices start from $158 USDSave up to $900 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
1.00ct Round
$158 USD