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5.15ct F SI2 Round Lab Grown Diamond

EX • F/SI2 • IGI LG512235621

Shape and cutting style on the report: Round brilliant

Certificate IGI LG512235621

Diamond specifications and retailer prices

From HK$4,998 HKD
$637 USD
As of November 1, 2026
Save HK$19,575 HKD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$24,573 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 5.15ct lab-grown round diamond

This 5.15ct lab-grown round sits in the over five carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512235621 or 512235621. Listed at 13 retailers as of October 29, 2026, with prices from HK$4,998 to HK$24,573, a HK$19,575 spread on the same certified stone. MOH London lists it at HK$24,573. 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

5.15
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512235621
Dimensions11.08 × 11.12 × 6.89 mm
L/W Ratio1.00
Girdle conditionFaceted
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
11.08 mm11.12 mm5.15 ctF / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512235621
Side View
Table 55.5%Crown 32.5°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 62.1%

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: Nov 1
Current: HK$24,573 HKD|Low: HK$4,998 HKD|High: HK$230,573 HKD|Avg: HK$15,359 HKD|-2.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 9HK$4,998 HKD
Retailer 2HK$5,177 HKD
Retailer 7HK$5,445 HKD
Retailer 13HK$5,594 HKD
Retailer 11HK$5,798 HKD
Retailer 5HK$8,591 HKD
Retailer 10HK$8,866 HKD
Retailer 6HK$9,235 HKD
Retailer 12HK$13,903 HKD
Retailer 8HK$14,821 HKD
Retailer 4HK$16,312 HKD
Retailer 3HK$23,538 HKD
MOH LondonHK$24,573 HKD

14 data points across 13 retailers

13 retailersHK$4,998 HKD to HK$24,573 HKD

A
Cheapest Retailer
-
HK$4,998 HKD
$637 USD
A
Retailer 2
-
HK$5,177 HKD
£520 GBP
View
A
Retailer 3
-
HK$5,445 HKD
$694 USD
View
A
Retailer 4
-
HK$5,594 HKD
$713 USD
View
Final sale: no returns
A
Retailer 5
-
HK$5,798 HKD
$739 USD
View
B+
Retailer 6
-
HK$8,591 HKD
$1,095 USD
View
B+
Retailer 7
-
HK$8,866 HKD
$1,130 USD
View
B+
Retailer 8
-
HK$9,235 HKD
£927 GBP
View
B
Retailer 9
-
HK$13,903 HKD
$1,772 USD
View
B
Retailer 10
-
HK$14,821 HKD
$1,889 USD
View
B
Retailer 11
-
HK$16,312 HKD
$2,079 USD
View
B
Retailer 12
-
HK$23,538 HKD
$3,000 USD
View
Most Expensive
B
MOH London
LG512235621 · Oct 29
HK$24,573 HKD
£2,466 GBP
View
12 more retailers have this diamond
Prices start from HK$4,998 HKDSave up to HK$19,575 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
5.15ct Round
HK$4,998 HKD