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Cushion|Lab Grown|IGI

4.20ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846664245

Certificate IGI LG846664245

Diamond specifications and retailer prices

From $8,045 SGD
$6,293 USD
As of October 30, 2026
Save $28,147 SGD (78%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $36,192 SGD at With Clarity · As of October 28, 2026
View at With Clarity

About this 4.2ct lab-grown cushion diamond

This 4.2ct 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 LG846664245 or 846664245. Listed at 4 retailers as of October 28, 2026, with prices from $8,045 to $36,192, a $28,147 spread on the same certified stone. With Clarity lists it at $36,192. 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

4.20
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG846664245
Dimensions11.14 × 8.37 × 5.66 mm
L/W Ratio1.33
Top View
11.14 mm8.37 mm4.20 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846664245
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.6%

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 30
Current: $8,045 SGD|Low: $8,045 SGD|High: $37,216 SGD|Avg: $20,106 SGD|-0.7%
Retailer 1
Retailer 2
Retailer 3
With Clarity
October 30, 2026
Retailer 1$8,045 SGD
Retailer 3$12,042 SGD
Retailer 2$13,031 SGD
With Clarity$36,192 SGD

5 data points across 4 retailers

4 retailers$8,045 SGD to $36,192 SGD

A
Cheapest Retailer
-
$8,045 SGD
$6,293 USD
B+
Retailer 2
-
$12,042 SGD
€8,971 EUR
View
B+
Retailer 3
-
$13,031 SGD
£8,026 GBP
View
Most Expensive
B
With Clarity
846664245 · Oct 28
$36,192 SGD
$28,310 USD
View
3 more retailers have this diamond
Prices start from $8,045 SGDSave up to $28,147 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
4.20ct Cushion
$8,045 SGD