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Round|Lab Grown|IGI

3.78ct G VS2 Round Lab Grown Diamond

ID • G/VS2 • IGI LG638499477

Shape and cutting style on the report: Round brilliant

Certificate IGI LG638499477

Diamond specifications and retailer prices

From $430 USD
As of October 29, 2026
Save $1,505 USD (78%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,460 USD at Rare Carat · As of September 9, 2026
View at Rare Carat

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 LG638499477 or 638499477. Listed at 6 retailers as of October 28, 2026, with a 350% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG638499477
Dimensions10.07 × 10.05 × 6.07 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
10.07 mm10.05 mm3.78 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG638499477
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,460 USD|Low: $320 USD|High: $6,130 USD|Avg: $1,687 USD
Rare Carat
Retailer 2
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Retailer 10
Retailer 11
Retailer 12
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Retailer 18
October 27, 2026
Retailer 2$430 USD
Retailer 16$491 USD
Retailer 11$498 USD
Retailer 14$713 USD
Retailer 15$763 USD
Retailer 13$777 USD
Retailer 12$801 USD
Retailer 18$835 USD
Retailer 3$1,274 USD
Retailer 17$1,307 USD
Retailer 8$1,464 USD
Retailer 4$1,623 USD
Retailer 6$1,935 USD
Retailer 5$2,033 USD
Rare Carat$2,460 USD
Retailer 10$3,050 USD
Retailer 7$3,434 USD
Retailer 9$6,130 USD

11 data points across 18 retailers

6 retailers$430 USD to $1,935 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
-
$1,464 USD
CA$2,033 CAD
View
B+
Retailer 5
-
$1,935 USD
View
Most Expensive
B
Rare Carat
100753297366_l_638499477 · Sep 9
$2,460 USD
View
Price last confirmed 50 days ago
5 more retailers have this diamond
Prices start from $430 USDSave up to $1,505 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