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Cushion|Lab Grown|IGI

4.10ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG720556118

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG720556118

Diamond specifications and retailer prices

From HK$24,196 HKD
$3,084 USD
As of October 31, 2026
Save HK$124,480 HKD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$153,619 HKD at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 4.1ct lab-grown cushion diamond

This 4.1ct lab-grown cushion 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 LG720556118 or 720556118. Listed at 21 retailers as of October 31, 2026, with a 514% 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

4.10
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720556118
Dimensions10.53 × 8.80 × 5.68 mm
L/W Ratio1.20
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
10.53 mm8.80 mm4.10 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720556118
Side View
Table 60.0%Crown 36.9°Girdle: MED-STKPavilion 35.6°Culet: NoneDepth 64.5%

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 31
Current: HK$90,618 HKD|Low: HK$24,196 HKD|High: HK$158,326 HKD|Avg: HK$63,524 HKD|-41.0%
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
October 31, 2026
Retailer 3HK$24,196 HKD
Retailer 16HK$25,451 HKD
Retailer 15HK$26,322 HKD
Retailer 18HK$32,332 HKD
Retailer 19HK$32,638 HKD
Retailer 11HK$32,771 HKD
Retailer 12HK$37,090 HKD
Retailer 6HK$42,987 HKD
Retailer 8HK$47,708 HKD
Retailer 2HK$51,281 HKD
Retailer 13HK$58,895 HKD
Retailer 7HK$59,381 HKD
Retailer 9HK$66,853 HKD
Retailer 4HK$69,034 HKD
Retailer 14HK$70,516 HKD
Brilliant EarthHK$90,618 HKD
Retailer 5HK$94,507 HKD
Retailer 10HK$96,368 HKD
Retailer 17HK$148,676 HKD

36 data points across 19 retailers

21 retailersHK$24,196 HKD to HK$148,676 HKD

A
Cheapest Retailer
-
HK$24,196 HKD
$3,084 USD
Final sale: no returns
A
Retailer 2
-
HK$25,451 HKD
$3,244 USD
View
A
Retailer 3
-
HK$26,322 HKD
$3,355 USD
View
A
Retailer 4
-
HK$32,332 HKD
$4,121 USD
View
A
Retailer 5
-
HK$32,638 HKD
View
Retailer 6
-
HK$32,771 HKD
$4,177 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
HK$37,090 HKD
£3,722 GBP
View
Retailer 8
-
HK$42,987 HKD
$5,479 USD
View
Price last confirmed 8 days ago
A
Retailer 9
-
HK$47,708 HKD
£4,788 GBP
View
A
Retailer 10
-
HK$51,281 HKD
€6,225 EUR
View
A
Retailer 11
-
HK$58,895 HKD
ZAR 121,270 ZAR
View
Retailer 12
-
HK$59,381 HKD
A$11,644 AUD
View
Price last confirmed 9 days ago
A
Retailer 13
-
HK$66,853 HKD
$8,521 USD
View
B+
Retailer 14
-
HK$69,034 HKD
$8,799 USD
View
B+
Retailer 15
-
HK$70,516 HKD
£7,077 GBP
View
Retailer 16
-
HK$72,239 HKD
£7,250 GBP
View
Price last confirmed 22 days ago
B+
Retailer 17
-
HK$90,618 HKD
$11,550 USD
View
B+
Retailer 18
-
HK$94,507 HKD
SGD 16,278 SGD
View
B+
Retailer 19
-
HK$96,368 HKD
$12,283 USD
View
B
Retailer 20
-
HK$148,676 HKD
$18,950 USD
View
Most Expensive
Brilliant Earth
14890425A · Oct 24
HK$153,619 HKD
$19,580 USD
View
Price last confirmed 7 days ago
20 more retailers have this diamond
Prices start from HK$24,196 HKDSave up to HK$124,480 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
4.10ct Cushion
HK$24,196 HKD