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Emerald|Lab Grown|IGI

4.20ct D FL Emerald Lab Grown Diamond

ID • D/FL • IGI LG780666205

Shape and cutting style on the report: Emerald cut

Certificate IGI LG780666205

Diamond specifications and retailer prices

From $5,408 AUD
$3,799 USD
As of October 30, 2026
Save $31,890 AUD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $37,298 AUD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

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 LG780666205 or 780666205. Listed at 15 retailers as of October 30, 2026, with prices from $5,408 to $37,298, a $31,890 spread on the same certified stone. Do Amore Diamonds lists it at $37,298. 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
Crown angle34.6°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780666205
Dimensions10.48 × 7.52 × 4.99 mm
L/W Ratio1.39
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
10.48 mm7.52 mm4.20 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780666205
Side View
Table 62.0%Crown 34.6°Girdle: ThickPavilion 39.4°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 30
Current: $37,298 AUD|Low: $5,190 AUD|High: $42,580 AUD|Avg: $13,806 AUD|-12.4%
Do Amore Diamonds
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 31, 2026
Retailer 12$5,408 AUD
Retailer 5$5,682 AUD
Retailer 9$5,867 AUD
Retailer 3$6,378 AUD
Retailer 2$6,627 AUD
Retailer 7$7,266 AUD
Retailer 8$8,320 AUD
Retailer 4$8,674 AUD
Retailer 15$9,746 AUD
Retailer 6$11,332 AUD
Retailer 13$11,955 AUD
Retailer 14$14,451 AUD
Retailer 10$17,012 AUD
Retailer 11$17,218 AUD
Do Amore Diamonds$37,298 AUD

34 data points across 15 retailers

15 retailers$5,408 AUD to $37,298 AUD

A
Cheapest Retailer
-
$5,408 AUD
$3,799 USD
A
Retailer 2
-
$5,682 AUD
$3,991 USD
View
A
Retailer 3
-
$5,867 AUD
$4,121 USD
View
A
Retailer 4
-
$6,378 AUD
$4,480 USD
View
A
Retailer 5
-
$6,627 AUD
$4,655 USD
View
A
Retailer 6
-
$7,266 AUD
$5,104 USD
View
Final sale: no returns
A
Retailer 7
-
$8,320 AUD
$5,844 USD
View
A
Retailer 8
-
$8,674 AUD
$6,093 USD
View
A
Retailer 9
-
$9,746 AUD
$6,846 USD
View
Retailer 10
-
$11,332 AUD
$7,960 USD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
$11,955 AUD
€7,998 EUR
View
B+
Retailer 12
-
$14,451 AUD
£7,993 GBP
View
B+
Retailer 13
-
$17,012 AUD
$11,950 USD
View
B+
Retailer 14
-
$17,218 AUD
$12,095 USD
View
Most Expensive
B
Do Amore Diamonds
27-218FC0F13 · Oct 30
$37,298 AUD
$26,200 USD
View
14 more retailers have this diamond
Prices start from $5,408 AUDSave up to $31,890 AUD

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
$5,408 AUD