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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 $6,508 SGD
$5,091 USD
As of October 30, 2026
Save $30,326 SGD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $36,835 SGD 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 $6,508 to $36,835, a $30,326 spread on the same certified stone. With Clarity lists it at $36,835. 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: $15,571 SGD|Low: $6,508 SGD|High: $42,741 SGD|Avg: $17,186 SGD|-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$6,508 SGD
Retailer 13$8,223 SGD
Retailer 12$8,722 SGD
Retailer 6$9,007 SGD
Retailer 5$10,419 SGD
Retailer 4$10,694 SGD
Retailer 8$11,410 SGD
Retailer 2$12,994 SGD
Retailer 9$14,421 SGD
Retailer 7$14,744 SGD
Retailer 1$15,571 SGD
Retailer 3$18,706 SGD
Retailer 10$24,788 SGD
With Clarity$36,835 SGD

41 data points across 14 retailers

14 retailers$6,508 SGD to $36,835 SGD

A
Cheapest Retailer
-
$6,508 SGD
$5,091 USD
A
Retailer 2
-
$8,223 SGD
$6,432 USD
View
A
Retailer 3
-
$8,722 SGD
HK$53,300 HKD
View
A
Retailer 4
-
$9,007 SGD
£5,547 GBP
View
Retailer 5
-
$10,419 SGD
$8,150 USD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$10,694 SGD
$8,365 USD
View
B+
Retailer 7
-
$11,410 SGD
€8,500 EUR
View
B+
Retailer 8
-
$12,994 SGD
$10,164 USD
View
B+
Retailer 9
-
$14,421 SGD
£8,882 GBP
View
B+
Retailer 10
-
$14,744 SGD
ZAR 186,315 ZAR
View
B+
Retailer 11
-
$15,571 SGD
$12,180 USD
View
B
Retailer 12
-
$18,706 SGD
$14,632 USD
View
B
Retailer 13
-
$24,788 SGD
$19,390 USD
View
Most Expensive
B
With Clarity
821641255 · Oct 30
$36,835 SGD
$28,813 USD
View
13 more retailers have this diamond
Prices start from $6,508 SGDSave up to $30,326 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
4.28ct Emerald
$6,508 SGD