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Emerald|Lab Grown|IGI

4.20ct D FL Emerald Lab Grown Diamond

EX • D/FL • IGI LG823694940

Shape and cutting style on the report: Emerald cut

Certificate IGI LG823694940

Diamond specifications and retailer prices

From $4,767 USD
As of October 30, 2026
Save $17,363 USD (78%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $22,130 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.2ct lab-grown emerald diamond

This 4.2ct lab-grown emerald 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 LG823694940 or 823694940. Listed at 21 retailers as of October 29, 2026, with prices from $4,767 to $22,130, a $17,363 spread on the same certified stone. Brilliant Earth lists it at $22,130. 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
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823694940
Dimensions11.32 × 7.43 × 4.84 mm
L/W Ratio1.52
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
11.32 mm7.43 mm4.20 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823694940
Side View
Table 66.0%Crown 33.9°Girdle: MediumPavilion 40.3°Culet: LargeDepth 65.1%

Caratlytics Score

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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: $22,130 USD|Low: $4,996 USD|High: $22,526 USD|Avg: $10,664 USD
Brilliant Earth
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
Retailer 16
Retailer 17
October 30, 2026
Retailer 16$4,996 USD
Retailer 4$5,338 USD
Retailer 15$5,560 USD
Retailer 3$6,288 USD
Retailer 5$6,579 USD
Retailer 2$7,039 USD
Retailer 14$7,062 USD
Retailer 6$7,818 USD
Retailer 17$8,548 USD
Retailer 11$9,044 USD
Retailer 12$11,510 USD
Retailer 10$11,768 USD
Retailer 13$13,223 USD
Retailer 7$15,370 USD
Retailer 8$19,060 USD
Retailer 9$19,806 USD
Brilliant Earth$22,130 USD

40 data points across 17 retailers

21 retailers$4,767 USD to $22,130 USD

A
Cheapest Retailer
-
$4,767 USD
A
Retailer 2
-
$4,996 USD
View
A
Retailer 3
-
$5,338 USD
View
Final sale: no returns
A
Retailer 4
-
$5,529 USD
View
Retailer 5
-
$5,529 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$5,560 USD
View
A
Retailer 7
-
$6,288 USD
View
A
Retailer 8
-
$6,579 USD
HK$51,400 HKD
View
A
Retailer 9
-
$6,910 USD
View
A
Retailer 10
-
$7,039 USD
£5,543 GBP
View
A
Retailer 11
-
$7,062 USD
View
B+
Retailer 12
-
$7,818 USD
£6,156 GBP
View
B+
Retailer 13
-
$8,548 USD
View
B+
Retailer 14
-
$9,044 USD
€8,613 EUR
View
B+
Retailer 15
-
$11,510 USD
£9,063 GBP
View
B+
Retailer 16
-
$11,768 USD
ZAR 190,118 ZAR
View
B
Retailer 17
-
$13,223 USD
View
B
Retailer 18
-
$15,370 USD
View
B
Retailer 19
-
$19,060 USD
SGD 25,757 SGD
View
B
Retailer 20
-
$19,806 USD
View
Most Expensive
B
Brilliant Earth
21056594A · Oct 29
$22,130 USD
View
20 more retailers have this diamond
Prices start from $4,767 USDSave up to $17,363 USD

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 Emerald
$4,767 USD