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Asscher|Lab Grown|IGI

4.21ct D FL Asscher Lab Grown Diamond

EX • D/FL • IGI LG831604048

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG831604048

Diamond specifications and retailer prices

From €4,587 EUR
£4,035 GBP
As of October 30, 2026
Save €16,505 EUR (78%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €21,092 EUR at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.21ct lab-grown asscher diamond

This 4.21ct lab-grown asscher 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 LG831604048 or 831604048. Listed at 25 retailers as of October 30, 2026, with prices from €4,587 to €21,092, a €16,505 spread on the same certified stone. With Clarity lists it at €21,092. 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
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831604048
Dimensions8.97 × 8.94 × 5.92 mm
L/W Ratio1.00
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
8.97 mm8.94 mm4.21 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831604048
Side View
Table 62.0%Crown 35.3°Girdle: MediumPavilion 41.6°Culet: NoneDepth 66.2%

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: €7,066 EUR|Low: €4,572 EUR|High: €21,092 EUR|Avg: €9,321 EUR|-1.2%
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
With Clarity
October 31, 2026
Retailer 14€4,587 EUR
Retailer 7€4,734 EUR
Retailer 8€5,021 EUR
Retailer 5€6,048 EUR
Retailer 12€6,657 EUR
Retailer 1€7,066 EUR
Retailer 9€7,885 EUR
Retailer 6€8,029 EUR
Retailer 4€8,210 EUR
Retailer 2€9,023 EUR
Retailer 11€9,936 EUR
Retailer 3€11,234 EUR
Retailer 15€11,687 EUR
Retailer 13€12,710 EUR
Retailer 10€19,258 EUR
With Clarity€21,092 EUR

29 data points across 16 retailers

25 retailers€4,587 EUR to €21,092 EUR

A
Cheapest Retailer
-
€4,587 EUR
£4,035 GBP
A
Retailer 2
-
€4,734 EUR
$5,289 USD
View
A
Retailer 3
-
€5,021 EUR
$5,609 USD
View
A
Retailer 4
-
€5,039 EUR
$5,630 USD
View
A
Retailer 5
-
€5,301 EUR
$5,922 USD
View
Final sale: no returns
A
Retailer 6
-
€5,491 EUR
$6,135 USD
View
Retailer 7
-
€5,491 EUR
$6,135 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
€5,505 EUR
$6,150 USD
View
A
Retailer 9
-
€5,813 EUR
$6,494 USD
View
A
Retailer 10
-
€6,048 EUR
$6,757 USD
View
A
Retailer 11
-
€6,519 EUR
$7,283 USD
View
A
Retailer 12
-
€6,657 EUR
HK$58,100 HKD
View
A
Retailer 13
-
€7,066 EUR
£6,216 GBP
View
B+
Retailer 14
-
€7,885 EUR
£6,936 GBP
View
Retailer 15
-
€8,029 EUR
$8,970 USD
View
Price last confirmed 12 days ago
B+
Retailer 16
-
€8,210 EUR
$9,172 USD
View
B+
Retailer 17
-
€9,023 EUR
View
B+
Retailer 18
-
€9,936 EUR
$11,101 USD
View
B+
Retailer 19
-
€11,234 EUR
£9,882 GBP
View
B+
Retailer 20
-
€11,687 EUR
ZAR 210,936 ZAR
View
B+
Retailer 21
-
€12,710 EUR
$14,200 USD
View
B
Retailer 22
-
€15,270 EUR
$17,060 USD
View
B
Retailer 23
-
€19,258 EUR
SGD 29,074 SGD
View
B
Retailer 24
-
€19,567 EUR
$21,860 USD
View
Most Expensive
B
With Clarity
831604048 · Oct 31
€21,092 EUR
$23,564 USD
View
24 more retailers have this diamond
Prices start from €4,587 EURSave up to €16,505 EUR

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 Asscher
€4,587 EUR