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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 $7,173 CAD
£4,035 GBP
As of October 30, 2026
Save $25,397 CAD (78%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $32,570 CAD at With Clarity · As of October 30, 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 $7,173 to $32,570, a $25,397 spread on the same certified stone. With Clarity lists it at $32,570. 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
Color
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: $7,173 CAD|Low: $7,106 CAD|High: $31,057 CAD|Avg: $13,676 CAD|-1.1%
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
October 30, 2026
Retailer 1$7,173 CAD
Retailer 5$7,402 CAD
Retailer 4$7,757 CAD
Retailer 7$8,587 CAD
Retailer 8$9,089 CAD
Retailer 2$9,457 CAD
Retailer 13$10,283 CAD
Retailer 9$11,004 CAD
Retailer 3$12,554 CAD
Retailer 15$12,837 CAD
Retailer 11$14,108 CAD
Retailer 12$17,565 CAD
Retailer 10$18,274 CAD
Retailer 16$20,626 CAD
Retailer 14$29,737 CAD
Retailer 6$31,057 CAD

30 data points across 16 retailers

25 retailers$7,173 CAD to $32,570 CAD

A
Cheapest Retailer
-
$7,173 CAD
£4,035 GBP
A
Retailer 2
-
$7,402 CAD
$5,289 USD
View
A
Retailer 3
-
$7,757 CAD
$5,542 USD
View
A
Retailer 4
-
$7,880 CAD
$5,630 USD
View
A
Retailer 5
-
$8,288 CAD
$5,922 USD
View
Final sale: no returns
A
Retailer 6
-
$8,587 CAD
$6,135 USD
View
Retailer 7
-
$8,587 CAD
$6,135 USD
View
Price last confirmed 13 days ago
A
Retailer 8
-
$8,608 CAD
$6,150 USD
View
A
Retailer 9
-
$9,089 CAD
$6,494 USD
View
A
Retailer 10
-
$9,457 CAD
$6,757 USD
View
A
Retailer 11
-
$10,193 CAD
$7,283 USD
View
A
Retailer 12
-
$10,283 CAD
HK$57,400 HKD
View
A
Retailer 13
-
$11,004 CAD
£6,191 GBP
View
B+
Retailer 14
-
$12,179 CAD
£6,852 GBP
View
Retailer 15
-
$12,554 CAD
$8,970 USD
View
Price last confirmed 11 days ago
B+
Retailer 16
-
$12,837 CAD
$9,172 USD
View
B+
Retailer 17
-
$14,108 CAD
€9,600 EUR
View
B+
Retailer 18
-
$17,565 CAD
£9,882 GBP
View
B+
Retailer 19
-
$18,274 CAD
ZAR 210,936 ZAR
View
B
Retailer 20
-
$20,626 CAD
$14,737 USD
View
B
Retailer 21
-
$23,877 CAD
$17,060 USD
View
B
Retailer 22
-
$29,737 CAD
SGD 28,712 SGD
View
B
Retailer 23
-
$30,596 CAD
$21,860 USD
View
B
Retailer 24
-
$31,057 CAD
$22,190 USD
View
Most Expensive
B
With Clarity
831604048 · Oct 30
$32,570 CAD
$23,271 USD
View
24 more retailers have this diamond
Prices start from $7,173 CADSave up to $25,397 CAD

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
$7,173 CAD