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Round|Lab Grown|IGI

1.51ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG793631681

Shape and cutting style on the report: Round brilliant

Certificate IGI LG793631681

Diamond specifications and retailer prices

From $235 USD
As of November 5, 2026
Save $1,071 USD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,306 USD at Reve Diamonds · As of November 4, 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 LG793631681 or 793631681. Listed at 21 retailers as of November 4, 2026, with prices from $235 to $1,306, a $1,071 spread on the same certified stone. Reve Diamonds lists it at $1,306. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG793631681
Dimensions7.33 × 7.28 × 4.62 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.33 mm7.28 mm1.51 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG793631681
Side View
Table 55.0%Crown 36°Girdle: MediumPavilion 41.2°Culet: NoneDepth 63.3%

Caratlytics Score

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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 5
Current: $544 USD|Low: $233 USD|High: $1,306 USD|Avg: $638 USD|+6.5%
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
Reve Diamonds
November 6, 2026
Retailer 5$235 USD
Retailer 11$263 USD
Retailer 12$273 USD
Retailer 2$292 USD
Retailer 14$292 USD
Retailer 3$493 USD
Retailer 13$543 USD
Retailer 1$544 USD
Retailer 10$548 USD
Retailer 6$938 USD
Retailer 9$941 USD
Retailer 4$989 USD
Retailer 7$1,090 USD
Retailer 8$1,165 USD
Reve Diamonds$1,306 USD

45 data points across 15 retailers

21 retailers$235 USD to $1,306 USD

Retailer 1
-
$233 USD
Price last confirmed 45 days ago
A
Retailer 2
-
$235 USD
View
A
Retailer 3
-
$263 USD
View
Final sale: no returns
A
Retailer 4
-
$273 USD
View
Retailer 5
-
$285 USD
View
Price last confirmed 45 days ago
Retailer 6
-
$292 USD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$292 USD
View
A
Retailer 8
-
$435 USD
View
B+
Retailer 9
-
$493 USD
View
B+
Retailer 10
-
$543 USD
View
B+
Retailer 11
-
$544 USD
View
B+
Retailer 12
-
$548 USD
View
B+
Retailer 13
-
$778 USD
View
Retailer 14
-
$930 USD
View
Price last confirmed 46 days ago
B
Retailer 15
-
$938 USD
View
B
Retailer 16
-
$941 USD
View
B
Retailer 17
-
$989 USD
View
B
Retailer 18
-
$1,040 USD
View
B
Retailer 19
-
$1,090 USD
View
B
Retailer 20
-
$1,165 USD
View
Most Expensive
B
Reve Diamonds
956C4DEDD · Nov 4
$1,306 USD
View
20 more retailers have this diamond
Prices start from $235 USDSave up to $1,071 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
$235 USD