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Cushion|Lab Grown|IGI

4.18ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG811627555

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG811627555

Diamond specifications and retailer prices

From $6,150 SGD
$4,811 USD
As of October 30, 2026
Save $17,105 SGD (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $23,255 SGD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.18ct lab-grown cushion diamond

This 4.18ct 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 LG811627555 or 811627555. Listed at 13 retailers as of October 30, 2026, with prices from $6,150 to $23,255, a $17,105 spread on the same certified stone. Taylor and Hart lists it at $23,255. 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

4.18
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.3°
Pavilion angle29.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811627555
Dimensions11.02 × 8.26 × 5.29 mm
L/W Ratio1.33
Girdle conditionFaceted
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
11.02 mm8.26 mm4.18 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811627555
Side View
Table 63.0%Crown 31.3°Girdle: STK-VTKPavilion 29.1°Culet: NoneDepth 64.0%

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: $8,453 SGD|Low: $5,305 SGD|High: $27,512 SGD|Avg: $12,108 SGD|-13.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
October 30, 2026
Retailer 12$6,150 SGD
Retailer 2$6,295 SGD
Retailer 4$6,520 SGD
Retailer 7$6,571 SGD
Retailer 8$7,821 SGD
Retailer 1$8,453 SGD
Retailer 3$9,176 SGD
Retailer 9$10,088 SGD
Retailer 11$12,197 SGD
Retailer 6$13,571 SGD
Retailer 5$13,875 SGD
Retailer 10$18,115 SGD
Taylor and Hart$23,255 SGD

42 data points across 13 retailers

13 retailers$6,150 SGD to $23,255 SGD

A
Cheapest Retailer
-
$6,150 SGD
$4,811 USD
A
Retailer 2
-
$6,295 SGD
$4,924 USD
View
Final sale: no returns
Retailer 3
-
$6,520 SGD
$5,100 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
$6,571 SGD
$5,140 USD
View
A
Retailer 5
-
$7,821 SGD
$6,118 USD
View
A
Retailer 6
-
$8,453 SGD
£5,207 GBP
View
A
Retailer 7
-
$9,176 SGD
£5,652 GBP
View
A
Retailer 8
-
$10,088 SGD
$7,891 USD
View
B+
Retailer 9
-
$12,197 SGD
$9,541 USD
View
B+
Retailer 10
-
$13,571 SGD
£8,359 GBP
View
B+
Retailer 11
-
$13,875 SGD
ZAR 175,337 ZAR
View
B+
Retailer 12
-
$18,115 SGD
$14,170 USD
View
Most Expensive
B
Taylor and Hart
5RC8QBX · Oct 30
$23,255 SGD
$18,191 USD
View
12 more retailers have this diamond
Prices start from $6,150 SGDSave up to $17,105 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
4.18ct Cushion
$6,150 SGD