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Round|Lab Grown|IGI

5.21ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG595367198

Shape and cutting style on the report: Round brilliant

Certificate IGI LG595367198

Diamond specifications and retailer prices

From HK$123,366 HKD
$15,724 USD
As of October 29, 2026
Save HK$241,381 HKD (66%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$364,747 HKD at Brilliance · As of October 30, 2026
View at Brilliance

About this 5.21ct lab-grown round diamond

This 5.21ct lab-grown round sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG595367198 or 595367198. Listed at 14 retailers as of October 29, 2026, with prices from HK$123,366 to HK$364,747, a HK$241,381 spread on the same certified stone. Brilliance lists it at HK$364,747. 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

5.21
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG595367198
Dimensions11.34 × 11.37 × 6.72 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
11.34 mm11.37 mm5.21 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG595367198
Side View
Table 59.0%Crown 32.8°GirdlePavilion 40.9°Culet: NoneDepth 59.2%

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 29
Current: HK$364,747 HKD|Low: HK$98,683 HKD|High: HK$364,747 HKD|Avg: HK$215,809 HKD|+25.8%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 9HK$126,331 HKD
Retailer 10HK$138,171 HKD
Retailer 8HK$141,576 HKD
Retailer 7HK$145,138 HKD
Retailer 11HK$145,420 HKD
Retailer 4HK$161,226 HKD
Retailer 5HK$225,994 HKD
Retailer 2HK$290,775 HKD
Retailer 6HK$294,370 HKD
Retailer 3HK$358,178 HKD
BrillianceHK$364,747 HKD

39 data points across 11 retailers

14 retailersHK$123,366 HKD to HK$364,747 HKD

A
Cheapest Retailer
-
HK$123,366 HKD
$15,724 USD
B+
Retailer 2
-
HK$126,331 HKD
$16,102 USD
View
B+
Retailer 3
-
HK$134,122 HKD
$17,095 USD
View
B+
Retailer 4
-
HK$138,171 HKD
$17,611 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$141,576 HKD
$18,045 USD
View
B+
Retailer 6
-
HK$143,106 HKD
$18,240 USD
View
Retailer 7
-
HK$143,106 HKD
$18,240 USD
View
Price last confirmed 14 days ago
B+
Retailer 8
-
HK$145,138 HKD
$18,499 USD
View
B+
Retailer 9
-
HK$161,226 HKD
£16,181 GBP
View
B+
Retailer 10
-
HK$225,994 HKD
£22,681 GBP
View
B
Retailer 11
-
HK$290,775 HKD
ZAR 598,736 ZAR
View
Retailer 12
-
HK$294,370 HKD
A$57,723 AUD
View
Price last confirmed 8 days ago
B
Retailer 13
-
HK$358,178 HKD
$45,653 USD
View
Most Expensive
B
Brilliance
D22536311 · Oct 30
HK$364,747 HKD
$46,490 USD
View
13 more retailers have this diamond
Prices start from HK$123,366 HKDSave up to HK$241,381 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
5.21ct Round
HK$123,366 HKD