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Round|Lab Grown|IGI

1.51ct E VS1 Round Lab Grown Diamond

EX • E/VS1 • IGI LG786654187

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786654187

Diamond specifications and retailer prices

From $251 USD
As of October 29, 2026
Save $1,369 USD (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $1,620 USD at Brilliant Earth · As of October 28, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG786654187 or 786654187. Listed at 24 retailers as of October 28, 2026, with prices from $251 to $1,620, a $1,369 spread on the same certified stone. Brilliant Earth lists it at $1,620. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786654187
Dimensions7.42 × 7.34 × 4.51 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
7.42 mm7.34 mm1.51 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786654187
Side View
Table 62.0%Crown 34.8°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 61.2%

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: Oct 29
Current: $1,620 USD|Low: $241 USD|High: $1,760 USD|Avg: $698 USD|-8.0%
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
Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 3$251 USD
Retailer 11$280 USD
Retailer 5$291 USD
Retailer 4$311 USD
Retailer 8$311 USD
Retailer 19$358 USD
Retailer 15$470 USD
Retailer 12$506 USD
Retailer 13$510 USD
Retailer 14$535 USD
Retailer 2$590 USD
Retailer 9$650 USD
Retailer 16$726 USD
Retailer 18$785 USD
Retailer 10$942 USD
Retailer 7$1,001 USD
Retailer 6$1,226 USD
Retailer 17$1,255 USD
Brilliant Earth$1,620 USD

40 data points across 19 retailers

24 retailers$251 USD to $1,620 USD

A
Cheapest Retailer
-
$251 USD
A
Retailer 2
-
$280 USD
View
Final sale: no returns
A
Retailer 3
-
$291 USD
View
A
Retailer 4
-
$311 USD
View
A
Retailer 5
-
$311 USD
View
A
Retailer 6
-
$358 USD
HK$2,800 HKD
View
B+
Retailer 7
-
$420 USD
View
A
Retailer 8
-
$470 USD
View
A
Retailer 9
-
$476 USD
View
A
Retailer 10
-
$506 USD
£398 GBP
View
A
Retailer 11
-
$510 USD
€486 EUR
View
A
Retailer 12
-
$535 USD
ZAR 8,645 ZAR
View
B+
Retailer 13
-
$590 USD
£464 GBP
View
B+
Retailer 14
-
$650 USD
View
B+
Retailer 15
-
$726 USD
A$1,117 AUD
View
B+
Retailer 16
-
$785 USD
View
B
Retailer 17
-
$874 USD
View
Price last confirmed 27 days ago
B
Retailer 18
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$961 USD
View
B
Retailer 19
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$1,001 USD
View
B
Retailer 20
-
$1,053 USD
View
B
Retailer 21
-
$1,226 USD
View
B
Retailer 22
-
$1,255 USD
£988 GBP
View
Price last confirmed 8 days ago
B
Retailer 23
-
$1,357 USD
View
Most Expensive
B
Brilliant Earth
20975901A · Oct 28
$1,620 USD
View
23 more retailers have this diamond
Prices start from $251 USDSave up to $1,369 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
$251 USD