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Cushion|Lab Grown|IGI

4.25ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG784642755

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG784642755

Diamond specifications and retailer prices

From $4,078 USD
As of October 29, 2026
Save $21,572 USD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $25,650 USD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.25ct lab-grown cushion diamond

This 4.25ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG784642755 or 784642755. Listed at 11 retailers as of October 29, 2026, with prices from $4,078 to $25,650, a $21,572 spread on the same certified stone. Do Amore Diamonds lists it at $25,650. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.25
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784642755
Dimensions9.40 × 9.35 × 6.30 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
9.40 mm9.35 mm4.25 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784642755
Side View
Table 60.0%Crown 36°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 67.4%

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: $25,650 USD|Low: $4,078 USD|High: $32,860 USD|Avg: $11,030 USD|-21.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 7$4,078 USD
Retailer 4$4,480 USD
Retailer 2$4,727 USD
Retailer 9$5,677 USD
Retailer 6$6,748 USD
Retailer 3$8,247 USD
Retailer 10$8,512 USD
Retailer 5$10,281 USD
Retailer 8$22,320 USD
Do Amore Diamonds$25,650 USD

26 data points across 10 retailers

11 retailers$4,078 USD to $25,650 USD

A
Cheapest Retailer
-
$4,078 USD
A
Retailer 2
-
$4,480 USD
View
A
Retailer 3
-
$4,727 USD
View
A
Retailer 4
-
$5,677 USD
View
Final sale: no returns
A
Retailer 5
-
$6,748 USD
View
A
Retailer 6
-
$8,247 USD
€7,854 EUR
View
Retailer 7
-
$8,512 USD
View
Price last confirmed 81 days ago
B+
Retailer 8
-
$10,281 USD
£8,095 GBP
View
B
Retailer 9
-
$20,214 USD
View
B
Retailer 10
-
$22,320 USD
View
Most Expensive
B
Do Amore Diamonds
27-92947CFD3 · Oct 30
$25,650 USD
View
10 more retailers have this diamond
Prices start from $4,078 USDSave up to $21,572 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
4.25ct Cushion
$4,078 USD