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Round|Lab Grown|IGI

1.51ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG830613026

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830613026

Diamond specifications and retailer prices

From €186 EUR
As of November 4, 2026
Save €835 EUR (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,021 EUR at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG830613026 or 830613026. Listed at 13 retailers as of November 4, 2026, with prices from €186 to €1,021, a €835 spread on the same certified stone. Reve Diamonds lists it at €1,021. 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

1.51
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830613026
Dimensions7.30 × 7.33 × 4.56 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.30 mm7.33 mm1.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830613026
Side View
Table 58.0%Crown 35.6°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.4%

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: Nov 4
Current: €667 EUR|Low: €186 EUR|High: €1,079 EUR|Avg: €557 EUR|-9.9%
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 3€186 EUR
Retailer 12€228 EUR
Retailer 6€276 EUR
Retailer 11€353 EUR
Retailer 7€370 EUR
Retailer 13€372 EUR
Retailer 5€394 EUR
Retailer 10€494 EUR
Retailer 9€633 EUR
Retailer 1€667 EUR
Retailer 4€712 EUR
Retailer 2€775 EUR
Retailer 8€962 EUR
Reve Diamonds€1,021 EUR

22 data points across 14 retailers

13 retailers€186 EUR to €1,021 EUR

A
Cheapest Retailer
-
€186 EUR
Final sale: no returns
A
Retailer 2
-
€228 EUR
View
B+
Retailer 3
-
€276 EUR
View
A
Retailer 4
-
€353 EUR
View
A
Retailer 5
-
€370 EUR
View
A
Retailer 6
-
€372 EUR
View
B+
Retailer 7
-
€494 EUR
View
B+
Retailer 8
-
€633 EUR
View
B+
Retailer 9
-
€667 EUR
View
B+
Retailer 10
-
€712 EUR
View
B
Retailer 11
-
€775 EUR
View
B
Retailer 12
-
€962 EUR
View
Most Expensive
B
Reve Diamonds
73E8D75D1 · Nov 6
€1,021 EUR
$1,146 USD
View
12 more retailers have this diamond
Prices start from €186 EURSave up to €835 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
1.51ct Round
€186 EUR