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Round|Lab Grown|IGI

1.51ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG754510408

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754510408

Diamond specifications and retailer prices

From $190 USD
As of November 3, 2026
Save $1,200 USD (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,390 USD at Brilliant Earth · As of November 4, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG754510408 or 754510408. Listed at 16 retailers as of November 3, 2026, with prices from $190 to $1,390, a $1,200 spread on the same certified stone. Brilliant Earth lists it at $1,390. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754510408
Dimensions7.40 × 7.34 × 4.52 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
7.40 mm7.34 mm1.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754510408
Side View
Table 59.0%Crown 33.8°Girdle: MediumPavilion 41.1°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 3
Current: $1,390 USD|Low: $184 USD|High: $1,460 USD|Avg: $566 USD|-4.8%
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 5, 2026
Retailer 13$190 USD
Retailer 5$220 USD
Retailer 14$235 USD
Retailer 8$241 USD
Retailer 9$366 USD
Retailer 12$406 USD
Retailer 6$413 USD
Retailer 11$433 USD
Retailer 3$441 USD
Retailer 4$494 USD
Retailer 10$730 USD
Retailer 15$757 USD
Retailer 16$760 USD
Retailer 7$810 USD
Retailer 2$1,097 USD
Brilliant Earth$1,390 USD

42 data points across 16 retailers

16 retailers$190 USD to $1,390 USD

A
Cheapest Retailer
-
$190 USD
A
Retailer 2
-
$220 USD
View
A
Retailer 3
-
$235 USD
View
Retailer 4
-
$241 USD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$366 USD
View
A
Retailer 6
-
$406 USD
View
B+
Retailer 7
-
$413 USD
View
A
Retailer 8
-
$433 USD
View
A
Retailer 9
-
$441 USD
View
A
Retailer 10
-
$494 USD
View
B+
Retailer 11
-
$730 USD
View
B+
Retailer 12
-
$757 USD
View
B+
Retailer 13
-
$760 USD
View
B+
Retailer 14
-
$810 USD
View
B+
Retailer 15
-
$1,097 USD
View
Most Expensive
B
Brilliant Earth
18094755A · Nov 4
$1,390 USD
View
15 more retailers have this diamond
Prices start from $190 USDSave up to $1,200 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
$190 USD