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Emerald|Lab Grown|IGI

4.28ct D FL Emerald Lab Grown Diamond

ID • D/FL • IGI LG821641255

Shape and cutting style on the report: Emerald cut

Certificate IGI LG821641255

Diamond specifications and retailer prices

From $7,248 AUD
$5,091 USD
As of October 30, 2026
Save $33,771 AUD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $41,018 AUD at With Clarity · As of October 30, 2026
View at With Clarity

About this 4.28ct lab-grown emerald diamond

This 4.28ct 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 LG821641255 or 821641255. Listed at 14 retailers as of October 30, 2026, with prices from $7,248 to $41,018, a $33,771 spread on the same certified stone. With Clarity lists it at $41,018. 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

4.28
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821641255
Dimensions11.21 × 7.51 × 4.96 mm
L/W Ratio1.49
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
11.21 mm7.51 mm4.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821641255
Side View
Table 62.0%Crown 36.4°Girdle: MediumPavilion 39.4°Culet: LargeDepth 66.0%

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: $17,339 AUD|Low: $7,248 AUD|High: $47,595 AUD|Avg: $19,138 AUD|-46.0%
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
With Clarity
October 30, 2026
Retailer 11$7,248 AUD
Retailer 13$9,157 AUD
Retailer 12$9,712 AUD
Retailer 6$10,030 AUD
Retailer 5$11,602 AUD
Retailer 4$11,908 AUD
Retailer 8$12,706 AUD
Retailer 2$14,469 AUD
Retailer 9$16,058 AUD
Retailer 7$16,418 AUD
Retailer 1$17,339 AUD
Retailer 3$20,831 AUD
Retailer 10$27,604 AUD
With Clarity$41,018 AUD

41 data points across 14 retailers

14 retailers$7,248 AUD to $41,018 AUD

A
Cheapest Retailer
-
$7,248 AUD
$5,091 USD
A
Retailer 2
-
$9,157 AUD
$6,432 USD
View
A
Retailer 3
-
$9,712 AUD
HK$53,300 HKD
View
A
Retailer 4
-
$10,030 AUD
£5,547 GBP
View
Retailer 5
-
$11,602 AUD
$8,150 USD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$11,908 AUD
$8,365 USD
View
B+
Retailer 7
-
$12,706 AUD
€8,500 EUR
View
B+
Retailer 8
-
$14,469 AUD
$10,164 USD
View
B+
Retailer 9
-
$16,058 AUD
£8,882 GBP
View
B+
Retailer 10
-
$16,418 AUD
ZAR 186,315 ZAR
View
B+
Retailer 11
-
$17,339 AUD
$12,180 USD
View
B
Retailer 12
-
$20,831 AUD
$14,632 USD
View
B
Retailer 13
-
$27,604 AUD
$19,390 USD
View
Most Expensive
B
With Clarity
821641255 · Oct 30
$41,018 AUD
$28,813 USD
View
13 more retailers have this diamond
Prices start from $7,248 AUDSave up to $33,771 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
4.28ct Emerald
$7,248 AUD