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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 $6,552 SGD
£4,035 GBP
As of October 30, 2026
Save $23,572 SGD (78%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $30,124 SGD 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 $6,552 to $30,124, a $23,572 spread on the same certified stone. With Clarity lists it at $30,124. 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: $18,409 SGD|Low: $6,530 SGD|High: $30,124 SGD|Avg: $12,004 SGD|+1.4%
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
With Clarity
October 31, 2026
Retailer 3$6,552 SGD
Retailer 10$6,761 SGD
Retailer 15$7,171 SGD
Retailer 13$7,661 SGD
Retailer 12$8,331 SGD
Retailer 8$8,638 SGD
Retailer 2$9,507 SGD
Retailer 14$10,093 SGD
Retailer 16$11,261 SGD
Retailer 9$11,467 SGD
Retailer 7$11,725 SGD
Retailer 5$12,886 SGD
Retailer 18$14,192 SGD
Retailer 6$16,044 SGD
Retailer 4$16,692 SGD
Retailer 1$18,409 SGD
Retailer 17$27,504 SGD
Retailer 11$28,225 SGD
With Clarity$30,124 SGD

28 data points across 19 retailers

25 retailers$6,552 SGD to $30,124 SGD

A
Cheapest Retailer
-
$6,552 SGD
£4,035 GBP
A
Retailer 2
-
$6,761 SGD
$5,289 USD
View
A
Retailer 3
-
$7,171 SGD
$5,609 USD
View
A
Retailer 4
-
$7,197 SGD
$5,630 USD
View
A
Retailer 5
-
$7,661 SGD
$5,993 USD
View
Final sale: no returns
A
Retailer 6
-
$7,843 SGD
$6,135 USD
View
Retailer 7
-
$7,843 SGD
$6,135 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
$7,862 SGD
$6,150 USD
View
A
Retailer 9
-
$8,331 SGD
$6,517 USD
View
A
Retailer 10
-
$8,638 SGD
$6,757 USD
View
A
Retailer 11
-
$9,311 SGD
$7,283 USD
View
A
Retailer 12
-
$9,507 SGD
HK$58,100 HKD
View
A
Retailer 13
-
$10,093 SGD
£6,216 GBP
View
B+
Retailer 14
-
$11,261 SGD
£6,936 GBP
View
Retailer 15
-
$11,467 SGD
$8,970 USD
View
Price last confirmed 13 days ago
B+
Retailer 16
-
$11,725 SGD
$9,172 USD
View
B+
Retailer 17
-
$12,886 SGD
€9,600 EUR
View
B+
Retailer 18
-
$14,192 SGD
$11,101 USD
View
B+
Retailer 19
-
$16,044 SGD
£9,882 GBP
View
B+
Retailer 20
-
$16,692 SGD
ZAR 210,936 ZAR
View
B+
Retailer 21
-
$18,409 SGD
$14,400 USD
View
B
Retailer 22
-
$21,810 SGD
$17,060 USD
View
B
Retailer 23
-
$27,504 SGD
View
B
Retailer 24
-
$28,225 SGD
$22,078 USD
View
Most Expensive
B
With Clarity
831604048 · Oct 31
$30,124 SGD
$23,564 USD
View
24 more retailers have this diamond
Prices start from $6,552 SGDSave up to $23,572 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
4.21ct Asscher
$6,552 SGD