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Cushion|Lab Grown|IGI

6.18ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG754594320

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG754594320

Diamond specifications and retailer prices

From HK$60,969 HKD
$7,771 USD
As of November 1, 2026
Save HK$309,819 HKD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$370,788 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 6.18ct lab-grown cushion diamond

This 6.18ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754594320 or 754594320. Listed at 13 retailers as of October 31, 2026, with prices from HK$60,969 to HK$370,788, a HK$309,819 spread on the same certified stone. Do Amore Diamonds lists it at HK$370,788. 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
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594320
Dimensions10.87 × 10.50 × 7.01 mm
L/W Ratio1.04
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
10.87 mm10.50 mm6.18 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594320
Side View
Table 61.0%Crown 33.9°Girdle: STK-THKPavilion 39°Culet: NoneDepth 66.8%

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: Nov 1
Current: HK$370,788 HKD|Low: HK$53,264 HKD|High: HK$415,508 HKD|Avg: HK$183,579 HKD|-10.8%
Do Amore 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
November 1, 2026
Retailer 15HK$60,969 HKD
Retailer 5HK$68,124 HKD
Retailer 16HK$68,454 HKD
Retailer 14HK$79,814 HKD
Retailer 3HK$83,282 HKD
Retailer 4HK$127,477 HKD
Retailer 12HK$129,625 HKD
Retailer 10HK$138,530 HKD
Retailer 13HK$139,732 HKD
Retailer 2HK$144,515 HKD
Retailer 8HK$155,681 HKD
Retailer 17HK$191,670 HKD
Retailer 11HK$254,230 HKD
Retailer 7HK$268,301 HKD
Retailer 9HK$333,229 HKD
Retailer 6HK$361,164 HKD
Do Amore DiamondsHK$370,788 HKD

33 data points across 17 retailers

13 retailersHK$60,969 HKD to HK$370,788 HKD

A
Cheapest Retailer
-
HK$60,969 HKD
$7,771 USD
A
Retailer 2
-
HK$68,124 HKD
$8,683 USD
View
Final sale: no returns
A
Retailer 3
-
HK$68,454 HKD
$8,725 USD
View
A
Retailer 4
-
HK$79,814 HKD
$10,173 USD
View
Retailer 5
-
HK$83,282 HKD
$10,615 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
HK$127,477 HKD
$16,248 USD
View
A
Retailer 7
-
HK$129,625 HKD
€15,735 EUR
View
A
Retailer 8
-
HK$138,530 HKD
£13,903 GBP
View
A
Retailer 9
-
HK$139,732 HKD
$17,810 USD
View
B+
Retailer 10
-
HK$144,515 HKD
A$28,338 AUD
View
B+
Retailer 11
-
HK$191,670 HKD
$24,430 USD
View
B
Retailer 12
-
HK$254,230 HKD
A$49,852 AUD
View
Most Expensive
B
Do Amore Diamonds
27-DCAF6E4E6 · Oct 31
HK$370,788 HKD
$47,260 USD
View
12 more retailers have this diamond
Prices start from HK$60,969 HKDSave up to HK$309,819 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 Cushion
HK$60,969 HKD