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Round|Lab Grown|IGI

2.51ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG818688390

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818688390

Diamond specifications and retailer prices

From HK$21,026 HKD
$2,680 USD
As of October 29, 2026
Save HK$64,007 HKD (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$85,034 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round sits in the two to three carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818688390 or 818688390. Listed at 17 retailers as of October 29, 2026, with prices from HK$21,026 to HK$85,034, a HK$64,007 spread on the same certified stone. Taylor and Hart lists it at HK$85,034. 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

2.51
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818688390
Dimensions8.74 × 8.69 × 5.37 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.74 mm8.69 mm2.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818688390
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: HK$32,808 HKD|Low: HK$16,805 HKD|High: HK$85,034 HKD|Avg: HK$42,480 HKD|+2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Taylor and Hart
October 31, 2026
Retailer 7HK$21,026 HKD
Retailer 2HK$23,537 HKD
Retailer 11HK$24,392 HKD
Retailer 3HK$24,926 HKD
Retailer 1HK$32,808 HKD
Retailer 6HK$34,835 HKD
Retailer 8HK$35,784 HKD
Retailer 10HK$37,965 HKD
Retailer 9HK$61,267 HKD
Retailer 4HK$62,927 HKD
Retailer 5HK$65,653 HKD
Taylor and HartHK$85,034 HKD

41 data points across 12 retailers

17 retailersHK$21,026 HKD to HK$85,034 HKD

B+
Cheapest Retailer
-
HK$21,026 HKD
$2,680 USD
Retailer 2
-
HK$21,026 HKD
$2,680 USD
View
Price last confirmed 36 days ago
Retailer 3
-
HK$22,878 HKD
$2,916 USD
View
Price last confirmed 38 days ago
B+
Retailer 4
-
HK$23,537 HKD
$3,000 USD
View
Final sale: no returns
Retailer 5
-
HK$24,055 HKD
$3,066 USD
View
Price last confirmed 35 days ago
Retailer 6
-
HK$24,055 HKD
$3,066 USD
View
Price last confirmed 36 days ago
Retailer 7
-
HK$24,392 HKD
$3,109 USD
View
Price last confirmed 19 days ago
B+
Retailer 8
-
HK$24,926 HKD
$3,177 USD
View
B+
Retailer 9
-
HK$32,808 HKD
£3,293 GBP
View
B+
Retailer 10
-
HK$33,525 HKD
$4,273 USD
View
B+
Retailer 11
-
HK$34,835 HKD
$4,440 USD
View
B+
Retailer 12
-
HK$35,784 HKD
$4,561 USD
View
B
Retailer 13
-
HK$37,965 HKD
$4,839 USD
View
B
Retailer 14
-
HK$61,267 HKD
$7,809 USD
View
B
Retailer 15
-
HK$62,927 HKD
ZAR 129,573 ZAR
View
B
Retailer 16
-
HK$65,653 HKD
£6,589 GBP
View
Most Expensive
B
Taylor and Hart
RD6C9YJ · Oct 31
HK$85,034 HKD
$10,838 USD
View
16 more retailers have this diamond
Prices start from HK$21,026 HKDSave up to HK$64,007 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.

B+
2.51ct Round
HK$21,026 HKD