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Round|Lab Grown|IGI

3.18ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG651482777

Shape and cutting style on the report: Round brilliant

Certificate IGI LG651482777

Diamond specifications and retailer prices

From $2,560 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: $2,560 USD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 3.18ct lab-grown round diamond

This 3.18ct lab-grown round sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG651482777 or 651482777. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.18
Carat
I
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651482777
Dimensions9.43 × 9.39 × 5.83 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.43 mm9.39 mm3.18 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651482777
Side View
Table 58.0%Crown 35.3°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: $2,560 USD|Low: $625 USD|High: $4,260 USD|Avg: $1,828 USD|-20.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
June 3, 2026
Retailer 8$961 USD
Retailer 4$1,047 USD
Retailer 5$1,165 USD
Retailer 2$1,242 USD
Retailer 10$1,359 USD
Retailer 6$1,425 USD
Retailer 7$1,584 USD
Retailer 3$1,922 USD
Retailer 9$2,240 USD
Brilliant Earth$2,560 USD

69 data points across 10 retailers

1 retailer

B+
Brilliant Earth
11786694A · Oct 31
$2,560 USD
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B+
3.18ct Round
$2,560 USD