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Round|Lab Grown|IGI

3.78ct G VS2 Round Lab Grown Diamond

ID • G/VS2 • IGI LG629474762

Shape and cutting style on the report: Round brilliant

Certificate IGI LG629474762

Diamond specifications and retailer prices

From $430 USD
As of October 29, 2026
Save $1,475 USD (77%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,905 USD at The Diamond Guys · As of October 28, 2026
View at The Diamond Guys

About this 3.78ct lab-grown round diamond

This 3.78ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG629474762 or 629474762. Listed at 5 retailers as of October 28, 2026, with prices from $430 to $1,905, a $1,475 spread on the same certified stone. The Diamond Guys lists it at $1,905. 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

3.78
Carat
G
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629474762
Dimensions10.11 × 10.06 × 6.08 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.11 mm10.06 mm3.78 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629474762
Side View
Table 58.0%Crown 34.1°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.2%

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: $430 USD|Low: $320 USD|High: $6,130 USD|Avg: $1,694 USD|-1.6%
Retailer 1
Retailer 2
Retailer 3
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Retailer 5
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
The Diamond Guys
October 27, 2026
Retailer 1$430 USD
Retailer 15$491 USD
Retailer 10$498 USD
Retailer 13$713 USD
Retailer 14$763 USD
Retailer 12$777 USD
Retailer 11$801 USD
Retailer 17$835 USD
Retailer 2$1,274 USD
Retailer 16$1,307 USD
Retailer 8$1,440 USD
Retailer 3$1,623 USD
The Diamond Guys$1,905 USD
Retailer 4$2,033 USD
Retailer 6$2,680 USD
Retailer 9$3,000 USD
Retailer 5$3,434 USD
Retailer 7$6,130 USD

11 data points across 18 retailers

5 retailers$430 USD to $1,905 USD

A
Cheapest Retailer
-
$430 USD
Final sale: no returns
A
Retailer 2
-
$491 USD
View
Price last confirmed 43 days ago
A
Retailer 3
-
$713 USD
£561 GBP
View
Price last confirmed 42 days ago
B+
Retailer 4
-
$1,440 USD
CA$2,001 CAD
View
Most Expensive
B+
The Diamond Guys
1954434150 · Oct 28
$1,905 USD
View
4 more retailers have this diamond
Prices start from $430 USDSave up to $1,475 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
3.78ct Round
$430 USD