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Round|Lab Grown|IGI

4.18ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG683520148

Shape and cutting style on the report: Round brilliant

Certificate IGI LG683520148

Diamond specifications and retailer prices

From HK$14,467 HKD
£1,452 GBP
As of October 30, 2026
Save HK$109,584 HKD (88%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: HK$124,052 HKD at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

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 LG683520148 or 683520148. Listed at 28 retailers as of October 24, 2026, with prices from HK$14,467 to HK$124,052, a HK$109,584 spread on the same certified stone. Brilliant Earth lists it at HK$124,052. 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 angle33.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683520148
Dimensions10.53 × 10.48 × 6.25 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
10.53 mm10.48 mm4.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683520148
Side View
Table 58.0%Crown 33.6°Girdle: MediumPavilion 40.4°Culet: NoneDepth 59.5%

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$124,052 HKD|Low: HK$14,419 HKD|High: HK$124,052 HKD|Avg: HK$37,525 HKD
Brilliant Earth
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
Retailer 21
Retailer 22
October 30, 2026
Retailer 2HK$14,467 HKD
Retailer 14HK$16,077 HKD
Retailer 6HK$16,313 HKD
Retailer 8HK$16,893 HKD
Retailer 15HK$17,490 HKD
Retailer 21HK$18,659 HKD
Retailer 19HK$18,674 HKD
Retailer 5HK$22,095 HKD
Retailer 13HK$25,557 HKD
Retailer 20HK$26,482 HKD
Retailer 4HK$28,074 HKD
Retailer 3HK$28,420 HKD
Retailer 17HK$36,514 HKD
Retailer 16HK$39,698 HKD
Retailer 12HK$40,021 HKD
Retailer 10HK$45,525 HKD
Retailer 18HK$47,471 HKD
Retailer 9HK$47,903 HKD
Retailer 7HK$53,332 HKD
Retailer 11HK$63,934 HKD
Retailer 22HK$100,199 HKD
Brilliant EarthHK$124,052 HKD

28 data points across 22 retailers

28 retailersHK$14,467 HKD to HK$124,052 HKD

A+
Cheapest Retailer
-
HK$14,467 HKD
£1,452 GBP
Retailer 2
-
HK$16,077 HKD
$2,049 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
HK$16,313 HKD
$2,079 USD
View
Final sale: no returns
A
Retailer 4
-
HK$16,893 HKD
$2,153 USD
View
Retailer 5
-
HK$17,490 HKD
$2,229 USD
View
Price last confirmed 10 days ago
Retailer 6
-
HK$18,651 HKD
$2,377 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
HK$18,659 HKD
$2,378 USD
View
A
Retailer 8
-
HK$18,674 HKD
$2,380 USD
View
A
Retailer 9
-
HK$22,095 HKD
View
A
Retailer 10
-
HK$25,557 HKD
£2,565 GBP
View
Retailer 11
-
HK$25,634 HKD
$3,267 USD
View
Price last confirmed 8 days ago
A
Retailer 12
-
HK$26,482 HKD
$3,375 USD
View
A
Retailer 13
-
HK$28,074 HKD
$3,578 USD
View
A
Retailer 14
-
HK$28,420 HKD
$3,622 USD
View
A
Retailer 15
-
HK$36,514 HKD
€4,432 EUR
View
A
Retailer 16
-
HK$39,698 HKD
ZAR 81,735 ZAR
View
Retailer 17
-
HK$40,021 HKD
A$7,847 AUD
View
Price last confirmed 7 days ago
A
Retailer 18
-
HK$45,525 HKD
$5,802 USD
View
B+
Retailer 19
-
HK$47,471 HKD
$6,050 USD
View
A
Retailer 20
-
HK$47,903 HKD
$6,105 USD
View
B+
Retailer 21
-
HK$52,469 HKD
$6,687 USD
View
B+
Retailer 22
-
HK$53,332 HKD
£5,352 GBP
View
B+
Retailer 23
-
HK$63,934 HKD
SGD 11,011 SGD
View
B+
Retailer 24
-
HK$65,243 HKD
$8,315 USD
View
Retailer 25
-
HK$73,940 HKD
£7,420 GBP
View
Price last confirmed 20 days ago
B
Retailer 26
-
HK$100,199 HKD
$12,770 USD
View
B
Retailer 27
-
HK$123,345 HKD
$15,720 USD
View
Most Expensive
B
Brilliant Earth
13152316A · Oct 24
HK$124,052 HKD
$15,810 USD
View
27 more retailers have this diamond
Prices start from HK$14,467 HKDSave up to HK$109,584 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$14,467 HKD