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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 €141 EUR
$158 USD
As of October 29, 2026
Save €806 EUR (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €947 EUR at Reve Diamonds · As of October 30, 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 29, 2026, with prices from €141 to €947, a €806 spread on the same certified stone. Reve Diamonds lists it at €947. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €429 EUR|Low: €140 EUR|High: €947 EUR|Avg: €379 EUR
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 31, 2026
Retailer 6€141 EUR
Retailer 14€158 EUR
Retailer 11€164 EUR
Retailer 3€175 EUR
Retailer 15€175 EUR
Retailer 8€306 EUR
Retailer 2€318 EUR
Retailer 10€341 EUR
Retailer 13€392 EUR
Retailer 12€412 EUR
Retailer 1€429 EUR
Retailer 4€477 EUR
Retailer 7€562 EUR
Retailer 5€612 EUR
Retailer 9€823 EUR
Reve Diamonds€947 EUR

45 data points across 16 retailers

22 retailers€141 EUR to €947 EUR

Retailer 1
-
€140 EUR
$156 USD
Price last confirmed 38 days ago
A
Retailer 2
-
€141 EUR
$158 USD
View
A
Retailer 3
-
€158 EUR
$176 USD
View
Final sale: no returns
A
Retailer 4
-
€164 EUR
$183 USD
View
Retailer 5
-
€171 EUR
$191 USD
View
Price last confirmed 38 days ago
A
Retailer 6
-
€175 EUR
$195 USD
View
A
Retailer 7
-
€175 EUR
$195 USD
View
A
Retailer 8
-
€245 EUR
$274 USD
View
B+
Retailer 9
-
€306 EUR
£270 GBP
View
B+
Retailer 10
-
€318 EUR
$355 USD
View
B+
Retailer 11
-
€341 EUR
View
Retailer 12
-
€362 EUR
$405 USD
View
Price last confirmed 88 days ago
B+
Retailer 13
-
€392 EUR
$438 USD
View
Retailer 14
-
€412 EUR
$460 USD
View
Price last confirmed 14 days ago
B+
Retailer 15
-
€429 EUR
A$738 AUD
View
B
Retailer 16
-
€477 EUR
$533 USD
View
Retailer 17
-
€533 EUR
$596 USD
View
Price last confirmed 38 days ago
Retailer 18
-
€558 EUR
$623 USD
View
Price last confirmed 39 days ago
B
Retailer 19
-
€562 EUR
$628 USD
View
B
Retailer 20
-
€612 EUR
$683 USD
View
B
Retailer 21
-
€823 EUR
£724 GBP
View
Most Expensive
B
Reve Diamonds
C2E712A44 · Oct 30
€947 EUR
$1,058 USD
View
21 more retailers have this diamond
Prices start from €141 EURSave up to €806 EUR

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
€141 EUR