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Cushion|Lab Grown|IGI

4.30ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780662187

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG780662187

Diamond specifications and retailer prices

From $5,850 CAD
$4,180 USD
As of October 29, 2026
Save $23,186 CAD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $29,037 CAD at Frank Darling · As of October 29, 2026
View at Frank Darling

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 LG780662187 or 780662187. Listed at 10 retailers as of October 29, 2026, with prices from $5,850 to $29,037, a $23,186 spread on the same certified stone. Frank Darling lists it at $29,037. 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 angle37.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662187
Dimensions11.06 × 8.64 × 5.74 mm
L/W Ratio1.28
Girdle conditionFaceted
Culet sizeLarge
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
11.06 mm8.64 mm4.30 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662187
Side View
Table 56.0%Crown 37.2°Girdle: STK-THKPavilion 40.7°Culet: LargeDepth 66.4%

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 29
Current: $29,037 CAD|Low: $5,850 CAD|High: $50,233 CAD|Avg: $21,555 CAD|-9.9%
Frank Darling
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 29, 2026
Retailer 2$5,850 CAD
Retailer 15$8,868 CAD
Retailer 13$9,373 CAD
Retailer 3$9,985 CAD
Retailer 10$12,123 CAD
Retailer 11$12,221 CAD
Retailer 14$12,666 CAD
Retailer 8$12,976 CAD
Retailer 12$13,701 CAD
Retailer 6$17,279 CAD
Retailer 9$22,780 CAD
Frank Darling$29,037 CAD
Retailer 4$32,583 CAD
Retailer 7$42,144 CAD
Retailer 5$50,233 CAD

28 data points across 15 retailers

10 retailers$5,850 CAD to $29,037 CAD

A
Cheapest Retailer
-
$5,850 CAD
$4,180 USD
A
Retailer 2
-
$8,868 CAD
$6,336 USD
View
Final sale: no returns
A
Retailer 3
-
$9,373 CAD
$6,697 USD
View
A
Retailer 4
-
$12,123 CAD
$8,662 USD
View
A
Retailer 5
-
$12,221 CAD
$8,732 USD
View
B+
Retailer 6
-
$12,666 CAD
$9,050 USD
View
B+
Retailer 7
-
$12,976 CAD
€8,830 EUR
View
B+
Retailer 8
-
$13,701 CAD
$9,789 USD
View
B+
Retailer 9
-
$22,780 CAD
£12,816 GBP
View
Most Expensive
B
Frank Darling
P82L-3EL · Oct 29
$29,037 CAD
$20,746 USD
View
9 more retailers have this diamond
Prices start from $5,850 CADSave up to $23,186 CAD

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
$5,850 CAD