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Cushion|Lab Grown|IGI

4.25ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780665477

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780665477

Diamond specifications and retailer prices

From $5,097 SGD
$3,987 USD
As of October 30, 2026
Save $26,633 SGD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $31,730 SGD 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 top-tier cut grade and certified by IGI LG780665477 or 780665477. Listed at 11 retailers as of October 30, 2026, with prices from $5,097 to $31,730, a $26,633 spread on the same certified stone. Do Amore Diamonds lists it at $31,730. 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

4.25
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665477
Dimensions10.79 × 8.51 × 5.67 mm
L/W Ratio1.27
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
10.79 mm8.51 mm4.25 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665477
Side View
Table 58.0%Crown 34.9°Girdle: THK-VTKPavilion 34.3°Culet: NoneDepth 66.6%

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 30
Current: $31,730 SGD|Low: $5,097 SGD|High: $42,008 SGD|Avg: $14,328 SGD|-24.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$5,097 SGD
Retailer 7$5,344 SGD
Retailer 5$6,002 SGD
Retailer 11$7,257 SGD
Retailer 10$8,627 SGD
Retailer 6$10,176 SGD
Retailer 3$10,882 SGD
Retailer 8$12,719 SGD
Retailer 9$14,676 SGD
Retailer 4$16,837 SGD
Do Amore Diamonds$31,730 SGD

28 data points across 11 retailers

11 retailers$5,097 SGD to $31,730 SGD

A
Cheapest Retailer
-
$5,097 SGD
$3,987 USD
A
Retailer 2
-
$5,344 SGD
$4,180 USD
View
A
Retailer 3
-
$6,002 SGD
$4,695 USD
View
A
Retailer 4
-
$7,257 SGD
$5,677 USD
View
Final sale: no returns
A
Retailer 5
-
$8,627 SGD
$6,748 USD
View
A
Retailer 6
-
$10,176 SGD
€7,581 EUR
View
Retailer 7
-
$10,882 SGD
$8,512 USD
View
Price last confirmed 82 days ago
B+
Retailer 8
-
$12,719 SGD
£7,834 GBP
View
B+
Retailer 9
-
$14,676 SGD
$11,480 USD
View
B+
Retailer 10
-
$16,837 SGD
$13,170 USD
View
Most Expensive
B
Do Amore Diamonds
27-6EADC235F · Oct 30
$31,730 SGD
$24,820 USD
View
10 more retailers have this diamond
Prices start from $5,097 SGDSave up to $26,633 SGD

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
$5,097 SGD