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Cushion|Lab Grown|IGI

4.30ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780662157

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780662157

Diamond specifications and retailer prices

From $4,122 USD
As of October 29, 2026
Save $21,998 USD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $26,120 USD at Do Amore Diamonds · As of October 28, 2026
View at Do Amore Diamonds

About this 4.3ct lab-grown cushion diamond

This 4.3ct 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 LG780662157 or 780662157. Listed at 11 retailers as of October 28, 2026, with prices from $4,122 to $26,120, a $21,998 spread on the same certified stone. Do Amore Diamonds lists it at $26,120. 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

4.30
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662157
Dimensions10.59 × 8.55 × 5.87 mm
L/W Ratio1.24
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
10.59 mm8.55 mm4.30 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662157
Side View
Table 57.0%Crown 35.5°Girdle: STK-THKPavilion 35.7°Culet: NoneDepth 68.7%

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: Oct 29
Current: $26,120 USD|Low: $4,122 USD|High: $33,230 USD|Avg: $12,819 USD|-21.4%
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
October 29, 2026
Retailer 8$4,122 USD
Retailer 5$4,230 USD
Retailer 10$4,834 USD
Retailer 12$5,742 USD
Retailer 7$6,824 USD
Retailer 2$8,055 USD
Retailer 3$8,715 USD
Retailer 9$10,077 USD
Retailer 6$11,612 USD
Retailer 11$22,580 USD
Do Amore Diamonds$26,120 USD
Retailer 4$27,694 USD

27 data points across 12 retailers

11 retailers$4,122 USD to $26,120 USD

A+
Cheapest Retailer
-
$4,122 USD
A
Retailer 2
-
$4,230 USD
View
A
Retailer 3
-
$4,834 USD
View
A
Retailer 4
-
$5,742 USD
View
Final sale: no returns
A
Retailer 5
-
$6,824 USD
View
A
Retailer 6
-
$8,055 USD
€7,671 EUR
View
Retailer 7
-
$8,715 USD
View
Price last confirmed 81 days ago
B+
Retailer 8
-
$10,077 USD
£7,935 GBP
View
B+
Retailer 9
-
$11,612 USD
View
B
Retailer 10
-
$22,580 USD
View
Most Expensive
B
Do Amore Diamonds
27-446F75BE7 · Oct 28
$26,120 USD
View
10 more retailers have this diamond
Prices start from $4,122 USDSave up to $21,998 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+
4.30ct Cushion
$4,122 USD