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Cushion|Lab Grown|IGI

4.26ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG800677550

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800677550

Diamond specifications and retailer prices

From $5,864 AUD
$4,119 USD
As of November 1, 2026
Save $30,737 AUD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $36,601 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.26ct lab-grown cushion diamond

This 4.26ct 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 LG800677550 or 800677550. Listed at 10 retailers as of October 31, 2026, with prices from $5,864 to $36,601, a $30,737 spread on the same certified stone. Do Amore Diamonds lists it at $36,601. 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

4.26
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle30.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800677550
Dimensions10.99 × 8.56 × 5.58 mm
L/W Ratio1.28
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
10.99 mm8.56 mm4.26 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800677550
Side View
Table 61.0%Crown 36.1°Girdle: STK-THKPavilion 30.7°Culet: NoneDepth 65.2%

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: $36,601 AUD|Low: $5,818 AUD|High: $46,893 AUD|Avg: $15,629 AUD|-21.9%
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$5,864 AUD
Retailer 6$6,392 AUD
Retailer 5$6,758 AUD
Retailer 9$8,100 AUD
Retailer 8$9,629 AUD
Retailer 2$11,685 AUD
Retailer 10$12,136 AUD
Retailer 7$14,180 AUD
Retailer 4$18,792 AUD
Do Amore Diamonds$36,601 AUD

27 data points across 10 retailers

10 retailers$5,864 AUD to $36,601 AUD

A+
Cheapest Retailer
-
$5,864 AUD
$4,119 USD
A
Retailer 2
-
$6,392 AUD
$4,490 USD
View
A
Retailer 3
-
$6,758 AUD
$4,747 USD
View
A
Retailer 4
-
$8,100 AUD
$5,690 USD
View
Final sale: no returns
A
Retailer 5
-
$9,629 AUD
$6,764 USD
View
A
Retailer 6
-
$11,685 AUD
€7,817 EUR
View
Retailer 7
-
$12,136 AUD
$8,525 USD
View
Price last confirmed 83 days ago
B+
Retailer 8
-
$14,180 AUD
£7,843 GBP
View
B+
Retailer 9
-
$18,792 AUD
$13,200 USD
View
Most Expensive
B
Do Amore Diamonds
27-EED11B3FB · Oct 31
$36,601 AUD
$25,710 USD
View
9 more retailers have this diamond
Prices start from $5,864 AUDSave up to $30,737 AUD

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+
4.26ct Cushion
$5,864 AUD