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Round|Lab Grown|IGI

3.78ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG741518616

Shape and cutting style on the report: Round brilliant

Certificate IGI LG741518616

Diamond specifications and retailer prices

From $666 USD
As of October 29, 2026
Save $5,254 USD (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,920 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 LG741518616 or 741518616. Listed at 13 retailers as of October 29, 2026, with prices from $666 to $5,920, a $5,254 spread on the same certified stone. Do Amore Diamonds lists it at $5,920. 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 angle33.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741518616
Dimensions10.18 × 10.13 × 6.03 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
10.18 mm10.13 mm3.78 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741518616
Side View
Table 59.0%Crown 33.2°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 59.4%

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: $5,920 USD|Low: $650 USD|High: $6,300 USD|Avg: $2,520 USD|-1.5%
Do Amore Diamonds
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
October 30, 2026
Retailer 14$666 USD
Retailer 10$725 USD
Retailer 2$1,171 USD
Retailer 3$1,259 USD
Retailer 9$1,260 USD
Retailer 6$1,315 USD
Retailer 5$1,326 USD
Retailer 12$1,925 USD
Retailer 13$1,974 USD
Retailer 8$2,054 USD
Retailer 15$2,399 USD
Retailer 7$2,960 USD
Retailer 11$3,354 USD
Retailer 4$5,210 USD
Retailer 16$5,910 USD
Do Amore Diamonds$5,920 USD

27 data points across 16 retailers

13 retailers$666 USD to $5,920 USD

A
Cheapest Retailer
-
$666 USD
A
Retailer 2
-
$725 USD
View
A
Retailer 3
-
$1,171 USD
£922 GBP
View
A
Retailer 4
-
$1,259 USD
View
B+
Retailer 5
-
$1,260 USD
View
Retailer 6
-
$1,925 USD
A$2,962 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$1,974 USD
View
B+
Retailer 8
-
$2,399 USD
View
B
Retailer 9
-
$2,795 USD
View
B
Retailer 10
-
$3,354 USD
£2,641 GBP
View
B
Retailer 11
-
$5,210 USD
View
B
Retailer 12
-
$5,910 USD
View
Most Expensive
B
Do Amore Diamonds
27-86D1FECF7 · Oct 29
$5,920 USD
View
12 more retailers have this diamond
Prices start from $666 USDSave up to $5,254 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
$666 USD