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Emerald|Lab Grown|IGI

4.51ct D FL Emerald Lab Grown Diamond

EX • D/FL • IGI LG831603917

Shape and cutting style on the report: Emerald cut

Certificate IGI LG831603917

Diamond specifications and retailer prices

From HK$49,428 HKD
$6,300 USD
As of October 30, 2026
Save HK$169,530 HKD (77%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$218,958 HKD at With Clarity · As of October 30, 2026
View at With Clarity

About this 4.51ct lab-grown emerald diamond

This 4.51ct 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 LG831603917 or 831603917. Listed at 23 retailers as of October 30, 2026, with prices from HK$49,428 to HK$218,958, a HK$169,530 spread on the same certified stone. With Clarity lists it at HK$218,958. 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

4.51
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831603917
Dimensions11.52 × 7.77 × 4.97 mm
L/W Ratio1.48
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
11.52 mm7.77 mm4.51 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831603917
Side View
Table 59.0%Crown 37.2°Girdle: MediumPavilion 40.4°Culet: LargeDepth 64.0%

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: HK$118,470 HKD|Low: HK$49,428 HKD|High: HK$231,260 HKD|Avg: HK$106,543 HKD|-37.8%
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
Retailer 19
With Clarity
October 30, 2026
Retailer 18HK$49,428 HKD
Retailer 10HK$54,025 HKD
Retailer 12HK$55,359 HKD
Retailer 11HK$60,216 HKD
Retailer 8HK$60,451 HKD
Retailer 6HK$63,432 HKD
Retailer 9HK$65,802 HKD
Retailer 14HK$69,092 HKD
Retailer 16HK$71,944 HKD
Retailer 19HK$81,785 HKD
Retailer 5HK$90,790 HKD
Retailer 3HK$100,166 HKD
Retailer 1HK$118,470 HKD
Retailer 4HK$121,501 HKD
Retailer 2HK$128,674 HKD
Retailer 7HK$146,448 HKD
Retailer 13HK$159,558 HKD
Retailer 17HK$198,598 HKD
Retailer 15HK$199,918 HKD
With ClarityHK$218,958 HKD

34 data points across 20 retailers

23 retailersHK$49,428 HKD to HK$218,958 HKD

A
Cheapest Retailer
-
HK$49,428 HKD
$6,300 USD
A
Retailer 2
-
HK$54,025 HKD
$6,886 USD
View
Retailer 3
-
HK$54,535 HKD
$6,951 USD
View
Price last confirmed 38 days ago
A
Retailer 4
-
HK$55,359 HKD
$7,056 USD
View
Final sale: no returns
A
Retailer 5
-
HK$60,216 HKD
$7,675 USD
View
A
Retailer 6
-
HK$60,451 HKD
$7,705 USD
View
Retailer 7
-
HK$60,451 HKD
$7,705 USD
View
Price last confirmed 14 days ago
A
Retailer 8
-
HK$63,432 HKD
$8,085 USD
View
B+
Retailer 9
-
HK$65,802 HKD
$8,387 USD
View
B+
Retailer 10
-
HK$69,092 HKD
View
B+
Retailer 11
-
HK$71,765 HKD
$9,147 USD
View
B+
Retailer 12
-
HK$71,944 HKD
£7,220 GBP
View
B+
Retailer 13
-
HK$81,785 HKD
£8,208 GBP
View
B+
Retailer 14
-
HK$90,790 HKD
$11,572 USD
View
B+
Retailer 15
-
HK$100,166 HKD
€12,159 EUR
View
B
Retailer 16
-
HK$118,470 HKD
$15,100 USD
View
B+
Retailer 17
-
HK$121,501 HKD
£12,194 GBP
View
B+
Retailer 18
-
HK$128,674 HKD
ZAR 264,952 ZAR
View
B
Retailer 19
-
HK$146,448 HKD
$18,666 USD
View
B
Retailer 20
-
HK$159,558 HKD
$20,337 USD
View
B
Retailer 21
-
HK$198,598 HKD
$25,313 USD
View
B
Retailer 22
-
HK$199,918 HKD
SGD 34,434 SGD
View
Most Expensive
B
With Clarity
831603917 · Oct 30
HK$218,958 HKD
$27,908 USD
View
22 more retailers have this diamond
Prices start from HK$49,428 HKDSave up to HK$169,530 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
4.51ct Emerald
HK$49,428 HKD