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Round|Lab Grown|IGI

3.78ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG743521831

Shape and cutting style on the report: Round brilliant

Certificate IGI LG743521831

Diamond specifications and retailer prices

From $785 USD
As of October 29, 2026
Save $6,185 USD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,970 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.78ct lab-grown round diamond

This 3.78ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG743521831 or 743521831. Listed at 18 retailers as of October 29, 2026, with prices from $785 to $6,970, a $6,185 spread on the same certified stone. Do Amore Diamonds lists it at $6,970. 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
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743521831
Dimensions9.98 × 9.94 × 6.20 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.98 mm9.94 mm3.78 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743521831
Side View
Table 57.0%Crown 35.3°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.3%

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: Oct 29
Current: $1,541 USD|Low: $754 USD|High: $10,050 USD|Avg: $2,566 USD|+2.6%
Retailer 1
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
October 30, 2026
Retailer 11$785 USD
Retailer 3$854 USD
Retailer 5$879 USD
Retailer 12$911 USD
Retailer 8$1,085 USD
Retailer 2$1,312 USD
Retailer 14$1,471 USD
Retailer 1$1,541 USD
Retailer 10$2,166 USD
Retailer 4$2,827 USD
Retailer 13$3,078 USD
Retailer 7$3,788 USD
Retailer 9$4,080 USD
Retailer 6$10,050 USD

42 data points across 14 retailers

18 retailers$785 USD to $6,970 USD

A
Cheapest Retailer
-
$785 USD
A
Retailer 2
-
$854 USD
View
A
Retailer 3
-
$879 USD
View
Final sale: no returns
A
Retailer 4
-
$911 USD
View
Retailer 5
-
$911 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$1,085 USD
View
A
Retailer 7
-
$1,312 USD
View
A
Retailer 8
-
$1,471 USD
View
A
Retailer 9
-
$1,541 USD
£1,213 GBP
View
B+
Retailer 10
-
$1,629 USD
View
B+
Retailer 11
-
$2,166 USD
View
B
Retailer 12
-
$2,827 USD
View
B
Retailer 13
-
$3,034 USD
View
B
Retailer 14
-
$3,078 USD
View
B
Retailer 15
-
$3,587 USD
View
B
Retailer 16
-
$3,788 USD
£2,983 GBP
View
Retailer 17
-
$4,080 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Do Amore Diamonds
27-01FFECC23 · Oct 29
$6,970 USD
View
17 more retailers have this diamond
Prices start from $785 USDSave up to $6,185 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
$785 USD