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Round|Lab Grown|IGI

6.18ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG660401846

Shape and cutting style on the report: Round brilliant

Certificate IGI LG660401846

Diamond specifications and retailer prices

From HK$36,467 HKD
$4,648 USD
As of October 29, 2026
Save HK$114,872 HKD (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$169,693 HKD at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 6.18ct lab-grown round diamond

This 6.18ct 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 LG660401846 or 660401846. Listed at 21 retailers as of October 29, 2026, with a 315% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

6.18
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660401846
Dimensions12.01 × 11.94 × 7.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.01 mm11.94 mm6.18 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660401846
Side View
Table 59.0%Crown 33.4°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 60.1%

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 29
Current: HK$169,693 HKD|Low: HK$36,467 HKD|High: HK$169,693 HKD|Avg: HK$75,532 HKD|+1.2%
Novita Diamonds
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
Retailer 20
October 31, 2026
Retailer 10HK$36,467 HKD
Retailer 13HK$38,216 HKD
Retailer 17HK$40,358 HKD
Retailer 6HK$40,837 HKD
Retailer 18HK$42,304 HKD
Retailer 4HK$44,446 HKD
Retailer 12HK$47,231 HKD
Retailer 7HK$50,313 HKD
Retailer 20HK$52,864 HKD
Retailer 14HK$54,025 HKD
Retailer 2HK$54,753 HKD
Retailer 9HK$61,785 HKD
Retailer 5HK$79,336 HKD
Retailer 15HK$81,851 HKD
Retailer 11HK$84,451 HKD
Retailer 16HK$88,062 HKD
Retailer 3HK$113,496 HKD
Retailer 19HK$117,580 HKD
Retailer 8HK$151,339 HKD
Novita DiamondsHK$169,693 HKD

40 data points across 20 retailers

21 retailersHK$36,467 HKD to HK$151,339 HKD

A
Cheapest Retailer
-
HK$36,467 HKD
$4,648 USD
A
Retailer 2
-
HK$38,216 HKD
$4,871 USD
View
A
Retailer 3
-
HK$40,358 HKD
$5,144 USD
View
A
Retailer 4
-
HK$40,837 HKD
$5,205 USD
View
Final sale: no returns
A
Retailer 5
-
HK$42,304 HKD
$5,392 USD
View
Retailer 6
-
HK$44,430 HKD
$5,663 USD
View
Price last confirmed 15 days ago
A
Retailer 7
-
HK$44,446 HKD
$5,665 USD
View
Retailer 8
-
HK$47,231 HKD
$6,020 USD
View
Price last confirmed 10 days ago
A
Retailer 9
-
HK$50,313 HKD
View
A
Retailer 10
-
HK$52,864 HKD
$6,738 USD
View
A
Retailer 11
-
HK$54,025 HKD
$6,886 USD
View
A
Retailer 12
-
HK$54,753 HKD
£5,495 GBP
View
A
Retailer 13
-
HK$61,785 HKD
$7,875 USD
View
A
Retailer 14
-
HK$79,336 HKD
$10,112 USD
View
A
Retailer 15
-
HK$81,851 HKD
ZAR 168,539 ZAR
View
Retailer 16
-
HK$84,451 HKD
A$16,560 AUD
View
Price last confirmed 9 days ago
A
Retailer 17
-
HK$88,062 HKD
£8,838 GBP
View
A
Retailer 18
-
HK$113,496 HKD
$14,466 USD
View
A
Retailer 19
-
HK$117,580 HKD
$14,987 USD
View
B+
Retailer 20
-
HK$151,339 HKD
$19,289 USD
View
Most Expensive
Novita Diamonds
cert_660401846 · Oct 8
HK$169,693 HKD
A$33,275 AUD
View
Price last confirmed 23 days ago
20 more retailers have this diamond
Prices start from HK$36,467 HKDSave up to HK$114,872 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
6.18ct Round
HK$36,467 HKD