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Emerald|Lab Grown|IGI

0.51ct D SI1 Emerald Lab Grown Diamond

ID • D/SI1 • IGI LG639433229

Shape and cutting style on the report: Emerald cut

Certificate IGI LG639433229

Diamond specifications and retailer prices

From HK$1,406 HKD
As of October 30, 2026
Save HK$2,831 HKD (67%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$9,894 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown emerald diamond

This 0.51ct lab-grown emerald sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG639433229 or 639433229. Listed at 9 retailers as of October 30, 2026, with a 201% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639433229
Dimensions5.75 × 3.75 × 2.44 mm
L/W Ratio1.53
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
5.75 mm3.75 mm0.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG639433229
Side View
Table 63.0%Crown 36.5°Girdle: STK-THKPavilion 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$9,894 HKD|Low: HK$1,765 HKD|High: HK$9,964 HKD|Avg: HK$3,254 HKD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 5HK$1,765 HKD
Retailer 4HK$2,125 HKD
Retailer 6HK$2,283 HKD
Retailer 2HK$2,414 HKD
Retailer 3HK$2,511 HKD
Retailer 8HK$2,589 HKD
Retailer 7HK$2,966 HKD
MOH LondonHK$9,894 HKD

42 data points across 8 retailers

9 retailersHK$1,406 HKD to HK$4,237 HKD

A
Cheapest Retailer
-
HK$1,406 HKD
B+
Retailer 2
-
HK$1,765 HKD
$225 USD
View
B+
Retailer 3
-
HK$2,125 HKD
€258 EUR
View
B+
Retailer 4
-
HK$2,283 HKD
$291 USD
View
B+
Retailer 5
-
HK$2,414 HKD
£242 GBP
View
B+
Retailer 6
-
HK$2,511 HKD
$320 USD
View
B
Retailer 7
-
HK$2,966 HKD
$378 USD
View
B
Retailer 8
-
HK$4,237 HKD
$540 USD
View
Most Expensive
MOH London
LG639433229 · Oct 29
HK$9,894 HKD
£993 GBP
View
Price under review
8 more retailers have this diamond
Prices start from HK$1,406 HKDSave up to HK$2,831 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
0.51ct Emerald
HK$1,406 HKD