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Emerald|Lab Grown|IGI

4.21ct E IF Emerald Lab Grown Diamond

ID • E/IF • IGI LG770625758

Shape and cutting style on the report: Emerald cut

Certificate IGI LG770625758

Diamond specifications and retailer prices

From $3,025 AUD
$2,125 USD
As of October 30, 2026
Save $9,244 AUD (75%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $12,269 AUD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.21ct lab-grown emerald diamond

This 4.21ct lab-grown emerald sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG770625758 or 770625758. Listed at 21 retailers as of October 30, 2026, with prices from $3,025 to $12,269, a $9,244 spread on the same certified stone. Taylor and Hart lists it at $12,269. 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

4.21
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770625758
Dimensions10.90 × 7.47 × 4.97 mm
L/W Ratio1.46
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.90 mm7.47 mm4.21 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770625758
Side View
Table 65.0%Crown 36.6°Girdle: MediumPavilion 37.2°Culet: LargeDepth 66.5%

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: $4,829 AUD|Low: $2,904 AUD|High: $13,513 AUD|Avg: $6,478 AUD|-13.2%
Retailer 1
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
Retailer 18
Retailer 19
Taylor and Hart
October 30, 2026
Retailer 18$3,025 AUD
Retailer 5$3,291 AUD
Retailer 4$3,387 AUD
Retailer 6$3,509 AUD
Retailer 9$3,509 AUD
Retailer 19$3,744 AUD
Retailer 8$3,851 AUD
Retailer 1$4,829 AUD
Retailer 15$5,014 AUD
Retailer 17$5,499 AUD
Retailer 13$6,158 AUD
Retailer 10$6,661 AUD
Retailer 12$7,469 AUD
Retailer 16$7,529 AUD
Retailer 7$8,307 AUD
Retailer 3$9,453 AUD
Retailer 14$9,571 AUD
Retailer 2$9,958 AUD
Retailer 11$11,732 AUD
Taylor and Hart$12,269 AUD

41 data points across 20 retailers

21 retailers$3,025 AUD to $12,269 AUD

A
Cheapest Retailer
-
$3,025 AUD
$2,125 USD
A
Retailer 2
-
$3,291 AUD
$2,312 USD
View
A
Retailer 3
-
$3,387 AUD
$2,379 USD
View
Final sale: no returns
A
Retailer 4
-
$3,509 AUD
$2,465 USD
View
Retailer 5
-
$3,509 AUD
$2,465 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$3,744 AUD
$2,630 USD
View
A
Retailer 7
-
$3,851 AUD
$2,705 USD
View
A
Retailer 8
-
$4,823 AUD
$3,388 USD
View
A
Retailer 9
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$4,829 AUD
£2,671 GBP
View
A
Retailer 10
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$5,014 AUD
$3,522 USD
View
A
Retailer 11
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$5,499 AUD
$3,863 USD
View
A
Retailer 12
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$6,158 AUD
€4,120 EUR
View
A
Retailer 13
-
$6,661 AUD
£3,684 GBP
View
A
Retailer 14
-
$7,469 AUD
ZAR 84,759 ZAR
View
Retailer 15
-
$7,529 AUD
View
Price last confirmed 8 days ago
A
Retailer 16
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$8,307 AUD
$5,835 USD
View
A
Retailer 17
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$9,453 AUD
$6,640 USD
View
A
Retailer 18
-
$9,571 AUD
£5,294 GBP
View
A
Retailer 19
-
$9,958 AUD
$6,995 USD
View
B+
Retailer 20
-
$11,732 AUD
SGD 11,137 SGD
View
Most Expensive
B+
Taylor and Hart
DMRG8K7 · Oct 30
$12,269 AUD
$8,618 USD
View
20 more retailers have this diamond
Prices start from $3,025 AUDSave up to $9,244 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
4.21ct Emerald
$3,025 AUD