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Emerald|Lab Grown|IGI

4.20ct D FL Emerald Lab Grown Diamond

EX • D/FL • IGI LG823694940

Shape and cutting style on the report: Emerald cut

Certificate IGI LG823694940

Diamond specifications and retailer prices

From HK$37,404 HKD
$4,767 USD
As of October 30, 2026
Save HK$136,237 HKD (78%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$173,641 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.2ct lab-grown emerald diamond

This 4.2ct 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 LG823694940 or 823694940. Listed at 21 retailers as of October 29, 2026, with prices from HK$37,404 to HK$173,641, a HK$136,237 spread on the same certified stone. Brilliant Earth lists it at HK$173,641. 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

4.20
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823694940
Dimensions11.32 × 7.43 × 4.84 mm
L/W Ratio1.52
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
11.32 mm7.43 mm4.20 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823694940
Side View
Table 66.0%Crown 33.9°Girdle: MediumPavilion 40.3°Culet: LargeDepth 65.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$173,641 HKD|Low: HK$39,201 HKD|High: HK$176,751 HKD|Avg: HK$83,675 HKD
Brilliant Earth
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
October 30, 2026
Retailer 16HK$39,201 HKD
Retailer 4HK$41,884 HKD
Retailer 15HK$43,626 HKD
Retailer 3HK$49,338 HKD
Retailer 5HK$51,623 HKD
Retailer 2HK$55,234 HKD
Retailer 14HK$55,411 HKD
Retailer 6HK$61,344 HKD
Retailer 17HK$67,071 HKD
Retailer 11HK$70,960 HKD
Retailer 12HK$90,312 HKD
Retailer 10HK$92,339 HKD
Retailer 13HK$103,753 HKD
Retailer 7HK$120,600 HKD
Retailer 8HK$149,554 HKD
Retailer 9HK$155,403 HKD
Brilliant EarthHK$173,641 HKD

40 data points across 17 retailers

21 retailersHK$37,404 HKD to HK$173,641 HKD

A
Cheapest Retailer
-
HK$37,404 HKD
$4,767 USD
A
Retailer 2
-
HK$39,201 HKD
$4,996 USD
View
A
Retailer 3
-
HK$41,884 HKD
$5,338 USD
View
Final sale: no returns
A
Retailer 4
-
HK$43,383 HKD
$5,529 USD
View
Retailer 5
-
HK$43,383 HKD
$5,529 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
HK$43,626 HKD
$5,560 USD
View
A
Retailer 7
-
HK$49,338 HKD
$6,288 USD
View
A
Retailer 8
-
HK$51,623 HKD
View
A
Retailer 9
-
HK$54,219 HKD
$6,910 USD
View
A
Retailer 10
-
HK$55,234 HKD
£5,543 GBP
View
A
Retailer 11
-
HK$55,411 HKD
$7,062 USD
View
B+
Retailer 12
-
HK$61,344 HKD
£6,156 GBP
View
B+
Retailer 13
-
HK$67,071 HKD
$8,548 USD
View
B+
Retailer 14
-
HK$70,960 HKD
€8,613 EUR
View
B+
Retailer 15
-
HK$90,312 HKD
£9,063 GBP
View
B+
Retailer 16
-
HK$92,339 HKD
ZAR 190,118 ZAR
View
B
Retailer 17
-
HK$103,753 HKD
$13,223 USD
View
B
Retailer 18
-
HK$120,600 HKD
$15,370 USD
View
B
Retailer 19
-
HK$149,554 HKD
SGD 25,757 SGD
View
B
Retailer 20
-
HK$155,403 HKD
$19,806 USD
View
Most Expensive
B
Brilliant Earth
21056594A · Oct 29
HK$173,641 HKD
$22,130 USD
View
20 more retailers have this diamond
Prices start from HK$37,404 HKDSave up to HK$136,237 HKD

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
4.20ct Emerald
HK$37,404 HKD