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 $209 USD
As of November 4, 2026
Save $937 USD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,146 USD 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 $209 to $1,146, a $937 spread on the same certified stone. Reve Diamonds lists it at $1,146. 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
Color
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: $749 USD|Low: $209 USD|High: $1,212 USD|Avg: $625 USD|-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$209 USD
Retailer 12$256 USD
Retailer 6$310 USD
Retailer 11$396 USD
Retailer 7$415 USD
Retailer 13$418 USD
Retailer 5$442 USD
Retailer 10$554 USD
Retailer 9$710 USD
Retailer 1$749 USD
Retailer 4$799 USD
Retailer 2$870 USD
Retailer 8$1,080 USD
Reve Diamonds$1,146 USD

22 data points across 14 retailers

13 retailers$209 USD to $1,146 USD

A
Cheapest Retailer
-
$209 USD
Final sale: no returns
A
Retailer 2
-
$256 USD
View
B+
Retailer 3
-
$310 USD
View
A
Retailer 4
-
$396 USD
View
A
Retailer 5
-
$415 USD
View
A
Retailer 6
-
$418 USD
View
B+
Retailer 7
-
$554 USD
View
B+
Retailer 8
-
$710 USD
View
B+
Retailer 9
-
$749 USD
View
B+
Retailer 10
-
$799 USD
View
B
Retailer 11
-
$870 USD
View
B
Retailer 12
-
$1,080 USD
View
Most Expensive
B
Reve Diamonds
73E8D75D1 · Nov 6
$1,146 USD
View
12 more retailers have this diamond
Prices start from $209 USDSave up to $937 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
1.51ct Round
$209 USD