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Round|Lab Grown|IGI

4.18ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG679506702

Shape and cutting style on the report: Round brilliant

Certificate IGI LG679506702

Diamond specifications and retailer prices

From HK$13,139 HKD
£1,319 GBP
As of October 30, 2026
Save HK$46,199 HKD (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$59,337 HKD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.18ct lab-grown round diamond

This 4.18ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG679506702 or 679506702. Listed at 18 retailers as of October 30, 2026, with prices from HK$13,139 to HK$59,337, a HK$46,199 spread on the same certified stone. Taylor and Hart lists it at HK$59,337. 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

4.18
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG679506702
Dimensions10.23 × 10.30 × 6.39 mm
L/W Ratio1.01
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
10.23 mm10.30 mm4.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG679506702
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A+
Exceptional
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$13,139 HKD|Low: HK$13,139 HKD|High: HK$60,812 HKD|Avg: HK$28,338 HKD|-7.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 17
Taylor and Hart
October 30, 2026
Retailer 1HK$13,139 HKD
Retailer 2HK$14,970 HKD
Retailer 9HK$16,288 HKD
Retailer 10HK$16,343 HKD
Retailer 4HK$17,363 HKD
Retailer 8HK$17,363 HKD
Retailer 13HK$18,673 HKD
Retailer 5HK$18,838 HKD
Retailer 11HK$23,784 HKD
Retailer 14HK$25,067 HKD
Retailer 17HK$28,511 HKD
Retailer 6HK$32,552 HKD
Retailer 3HK$36,420 HKD
Retailer 12HK$36,963 HKD
Retailer 16HK$37,264 HKD
Retailer 7HK$46,792 HKD
Retailer 15HK$49,661 HKD
Taylor and HartHK$59,337 HKD

32 data points across 18 retailers

18 retailersHK$13,139 HKD to HK$59,337 HKD

A+
Cheapest Retailer
-
HK$13,139 HKD
£1,319 GBP
A
Retailer 2
-
HK$14,970 HKD
$1,908 USD
View
A
Retailer 3
-
HK$16,288 HKD
$2,076 USD
View
A
Retailer 4
-
HK$16,343 HKD
$2,083 USD
View
Final sale: no returns
A
Retailer 5
-
HK$17,363 HKD
$2,213 USD
View
Retailer 6
-
HK$17,363 HKD
$2,213 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
HK$18,673 HKD
$2,380 USD
View
A
Retailer 8
-
HK$18,838 HKD
$2,401 USD
View
A
Retailer 9
-
HK$23,784 HKD
£2,387 GBP
View
A
Retailer 10
-
HK$25,067 HKD
$3,195 USD
View
A
Retailer 11
-
HK$28,511 HKD
$3,634 USD
View
A
Retailer 12
-
HK$32,552 HKD
$4,149 USD
View
A
Retailer 13
-
HK$36,420 HKD
$4,642 USD
View
A
Retailer 14
-
HK$36,963 HKD
ZAR 76,110 ZAR
View
Retailer 15
-
HK$37,264 HKD
A$7,307 AUD
View
Price last confirmed 8 days ago
A
Retailer 16
-
HK$46,792 HKD
$5,964 USD
View
B+
Retailer 17
-
HK$49,661 HKD
£4,984 GBP
View
Most Expensive
B+
Taylor and Hart
8Y0X2RH · Oct 30
HK$59,337 HKD
$7,563 USD
View
17 more retailers have this diamond
Prices start from HK$13,139 HKDSave up to HK$46,199 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+
4.18ct Round
HK$13,139 HKD