Cushion|Lab Grown|IGI

4.78ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG804660154

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG804660154

Diamond specifications and retailer prices

From $4,822 USD
As of November 1, 2026
Save $25,958 USD (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $30,780 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.78ct lab-grown cushion diamond

This 4.78ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804660154 or 804660154. Listed at 9 retailers as of October 31, 2026, with prices from $4,822 to $30,780, a $25,958 spread on the same certified stone. Do Amore Diamonds lists it at $30,780. 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

4.78
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804660154
Dimensions11.63 × 9.03 × 5.76 mm
L/W Ratio1.29
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.63 mm9.03 mm4.78 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804660154
Side View
Table 62.0%Crown 33.7°Girdle: STK-THKPavilion 34.8°Culet: NoneDepth 63.8%

Caratlytics Score

How it works →
A+
Exceptional
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: Nov 1
Current: $30,780 USD|Low: $4,822 USD|High: $39,510 USD|Avg: $13,852 USD|-22.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 3$4,822 USD
Retailer 6$5,120 USD
Retailer 9$6,432 USD
Retailer 5$6,573 USD
Retailer 8$8,182 USD
Retailer 2$9,913 USD
Retailer 7$11,718 USD
Retailer 4$13,900 USD
Retailer 10$18,175 USD
Do Amore Diamonds$30,780 USD

27 data points across 10 retailers

9 retailers$4,822 USD to $30,780 USD

A+
Cheapest Retailer
-
$4,822 USD
A
Retailer 2
-
$5,120 USD
View
A
Retailer 3
-
$6,432 USD
View
Final sale: no returns
A
Retailer 4
-
$6,573 USD
View
A
Retailer 5
-
$8,182 USD
View
A
Retailer 6
-
$9,913 USD
€9,441 EUR
View
B+
Retailer 7
-
$11,718 USD
£9,227 GBP
View
B+
Retailer 8
-
$13,900 USD
View
Most Expensive
B
Do Amore Diamonds
27-BBB4EC1E3 · Oct 31
$30,780 USD
View
8 more retailers have this diamond
Prices start from $4,822 USDSave up to $25,958 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+
4.78ct Cushion
$4,822 USD