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Round|Lab Grown|IGI

1.51ct E VVS2 Round Lab Grown Diamond

ID • E/VVS2 • IGI LG781631379

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781631379

Diamond specifications and retailer prices

From $258 USD
As of November 5, 2026
Save $1,121 USD (81%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $1,820 USD at Brilliant Earth · As of October 27, 2026
View at Brilliant Earth

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 VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG781631379 or 781631379. Listed at 24 retailers as of November 4, 2026, with a 434% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Color
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781631379
Dimensions7.38 × 7.44 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.38 mm7.44 mm1.51 ctE / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781631379
Side View
Table 55.0%Crown 33.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.3%

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: Nov 5
Current: $1,820 USD|Low: $248 USD|High: $1,910 USD|Avg: $675 USD|-4.7%
Brilliant Earth
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
Retailer 16
November 6, 2026
Retailer 5$258 USD
Retailer 4$300 USD
Retailer 3$320 USD
Retailer 6$320 USD
Retailer 7$358 USD
Retailer 12$480 USD
Retailer 10$487 USD
Retailer 15$521 USD
Retailer 14$553 USD
Retailer 2$600 USD
Retailer 13$750 USD
Retailer 9$831 USD
Retailer 16$1,030 USD
Retailer 8$1,260 USD
Retailer 11$1,280 USD
Brilliant Earth$1,820 USD

35 data points across 16 retailers

24 retailers$258 USD to $1,379 USD

A
Cheapest Retailer
-
$258 USD
A
Retailer 2
-
$288 USD
View
Final sale: no returns
A
Retailer 3
-
$300 USD
View
A
Retailer 4
-
$320 USD
View
Retailer 5
-
$320 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$358 USD
View
B+
Retailer 7
-
$432 USD
View
A
Retailer 8
-
$480 USD
View
A
Retailer 9
-
$487 USD
View
A
Retailer 10
-
$500 USD
View
Retailer 11
-
$521 USD
View
Price last confirmed 8 days ago
A
Retailer 12
-
$553 USD
View
B+
Retailer 13
-
$600 USD
View
B+
Retailer 14
-
$658 USD
View
B+
Retailer 15
-
$750 USD
View
B+
Retailer 16
-
$831 USD
View
B
Retailer 17
-
$992 USD
View
B
Retailer 18
-
$1,030 USD
View
B
Retailer 19
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$1,052 USD
View
B
Retailer 20
-
$1,081 USD
View
B
Retailer 21
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$1,260 USD
View
B
Retailer 22
-
$1,280 USD
View
B
Retailer 23
-
$1,379 USD
View
Most Expensive
Brilliant Earth
20979994A · Oct 27
$1,820 USD
View
Price last confirmed 9 days ago
23 more retailers have this diamond
Prices start from $258 USDSave up to $1,121 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
$258 USD