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Round|Lab Grown|IGI

1.51ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG783611604

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783611604

Diamond specifications and retailer prices

From $217 USD
As of November 4, 2026
Save $1,173 USD (84%) vs most expensive(unlock to see where)
17 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 LG783611604 or 783611604. Listed at 17 retailers as of November 4, 2026, with prices from $217 to $1,390, a $1,173 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783611604
Dimensions7.36 × 7.28 × 4.58 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
7.36 mm7.28 mm1.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783611604
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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 4
Current: $1,390 USD|Low: $191 USD|High: $1,390 USD|Avg: $581 USD
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 6$191 USD
Retailer 16$217 USD
Retailer 5$247 USD
Retailer 8$247 USD
Retailer 7$332 USD
Retailer 11$416 USD
Retailer 14$442 USD
Retailer 12$451 USD
Retailer 15$498 USD
Retailer 10$561 USD
Retailer 9$730 USD
Retailer 13$778 USD
Retailer 4$828 USD
Retailer 2$1,123 USD
Retailer 3$1,175 USD
Brilliant Earth$1,390 USD

26 data points across 16 retailers

17 retailers$217 USD to $1,390 USD

Retailer 1
-
$191 USD
Price last confirmed 35 days ago
A
Retailer 2
-
$217 USD
View
Final sale: no returns
Retailer 3
-
$231 USD
View
Price last confirmed 30 days ago
Retailer 4
-
$247 USD
View
Price last confirmed 34 days ago
B+
Retailer 5
-
$332 USD
View
A
Retailer 6
-
$416 USD
View
A
Retailer 7
-
$442 USD
View
Retailer 8
-
$451 USD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$498 USD
View
A
Retailer 10
-
$561 USD
View
B+
Retailer 11
-
$730 USD
View
B+
Retailer 12
-
$778 USD
View
Retailer 13
-
$793 USD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
$828 USD
View
B+
Retailer 15
-
$1,123 USD
View
B
Retailer 16
-
$1,175 USD
View
Most Expensive
B
Brilliant Earth
20918537A · Nov 4
$1,390 USD
View
16 more retailers have this diamond
Prices start from $217 USDSave up to $1,173 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
$217 USD