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Cushion|Lab Grown|IGI

3.78ct E VVS1 Cushion Lab Grown Diamond

EX • E/VVS1 • IGI LG776645477

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG776645477

Diamond specifications and retailer prices

From $2,407 USD
As of October 31, 2026
Save $7,540 USD (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $15,310 USD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 3.78ct lab-grown cushion diamond

This 3.78ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG776645477 or 776645477. Listed at 17 retailers as of October 30, 2026, with a 313% 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
E
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle42.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776645477
Dimensions10.93 × 8.30 × 5.49 mm
L/W Ratio1.32
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.93 mm8.30 mm3.78 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776645477
Side View
Table 61.0%Crown 34.2°Girdle: MED-STKPavilion 42.4°Culet: NoneDepth 66.1%

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 31
Current: $15,310 USD|Low: $2,582 USD|High: $15,310 USD|Avg: $5,220 USD
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
October 31, 2026
Retailer 4$2,582 USD
Retailer 5$2,629 USD
Retailer 6$2,731 USD
Retailer 13$2,745 USD
Retailer 12$3,323 USD
Retailer 3$3,619 USD
Retailer 8$3,848 USD
Retailer 7$5,410 USD
Retailer 2$5,434 USD
Retailer 11$6,446 USD
Retailer 9$6,618 USD
Retailer 15$6,894 USD
Retailer 14$7,565 USD
Retailer 10$7,672 USD
Do Amore Diamonds$15,310 USD

45 data points across 15 retailers

17 retailers$2,407 USD to $9,947 USD

A
Cheapest Retailer
-
$2,407 USD
Retailer 2
-
$2,582 USD
View
Price last confirmed 20 days ago
B+
Retailer 3
-
$2,629 USD
View
B+
Retailer 4
-
$2,731 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,745 USD
View
Retailer 6
-
$3,323 USD
£2,617 GBP
View
Price last confirmed 14 days ago
B+
Retailer 7
-
$3,619 USD
View
B+
Retailer 8
-
$3,848 USD
£3,030 GBP
View
B
Retailer 9
-
$5,410 USD
£4,260 GBP
View
B
Retailer 10
-
$5,434 USD
A$8,360 AUD
View
Retailer 11
-
$6,446 USD
A$9,917 AUD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$6,618 USD
ZAR 106,916 ZAR
View
B
Retailer 13
-
$6,894 USD
View
B
Retailer 14
-
$7,565 USD
View
B
Retailer 15
-
$7,672 USD
£6,041 GBP
View
B
Retailer 16
-
$9,947 USD
View
Most Expensive
Do Amore Diamonds
27-565A97105 · Oct 30
$15,310 USD
View
Price under review
16 more retailers have this diamond
Prices start from $2,407 USDSave up to $7,540 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 Cushion
$2,407 USD