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Cushion|Lab Grown|IGI

1.05ct E IF Cushion Lab Grown Diamond

VG • E/IF • IGI LG840634725

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840634725

Diamond specifications and retailer prices

From HK$3,829 HKD
$488 USD
As of October 30, 2026
Save HK$9,038 HKD (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$12,867 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.05ct lab-grown cushion diamond

This 1.05ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG840634725 or 840634725. Listed at 14 retailers as of October 30, 2026, with prices from HK$3,829 to HK$12,867, a HK$9,038 spread on the same certified stone. Brilliant Earth lists it at HK$12,867. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.05
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634725
Dimensions7.23 × 5.06 × 3.53 mm
L/W Ratio1.43
Girdle conditionFaceted
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
7.23 mm5.06 mm1.05 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634725
Side View
Table 62.0%Crown 33.9°Girdle: MED-STKPavilion 36.1°Culet: NoneDepth 69.8%

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: Oct 30
Current: HK$12,867 HKD|Low: HK$2,404 HKD|High: HK$12,867 HKD|Avg: HK$6,561 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
November 1, 2026
Retailer 5HK$2,404 HKD
Retailer 13HK$3,829 HKD
Retailer 8HK$3,886 HKD
Retailer 14HK$4,095 HKD
Retailer 2HK$4,232 HKD
Retailer 7HK$4,374 HKD
Retailer 12HK$4,794 HKD
Retailer 9HK$5,518 HKD
Retailer 4HK$7,147 HKD
Retailer 6HK$7,681 HKD
Retailer 10HK$9,077 HKD
Retailer 11HK$10,317 HKD
Retailer 3HK$12,702 HKD
Brilliant EarthHK$12,867 HKD

17 data points across 14 retailers

14 retailersHK$3,829 HKD to HK$12,867 HKD

Retailer 1
-
HK$2,404 HKD
£241 GBP
Price last confirmed 15 days ago
A
Retailer 2
-
HK$3,829 HKD
$488 USD
View
A
Retailer 3
-
HK$3,886 HKD
ZAR 8,002 ZAR
View
A
Retailer 4
-
HK$4,095 HKD
$522 USD
View
A
Retailer 5
-
HK$4,232 HKD
£425 GBP
View
A
Retailer 6
-
HK$4,374 HKD
€531 EUR
View
A
Retailer 7
-
HK$4,794 HKD
$611 USD
View
A
Retailer 8
-
HK$5,518 HKD
A$1,082 AUD
View
B+
Retailer 9
-
HK$7,147 HKD
SGD 1,231 SGD
View
B+
Retailer 10
-
HK$7,681 HKD
$979 USD
View
B+
Retailer 11
-
HK$9,077 HKD
£911 GBP
View
Retailer 12
-
HK$10,317 HKD
$1,315 USD
View
Price last confirmed 13 days ago
B
Retailer 13
-
HK$12,702 HKD
$1,619 USD
View
Most Expensive
B
Brilliant Earth
22143078A · Oct 31
HK$12,867 HKD
$1,640 USD
View
13 more retailers have this diamond
Prices start from HK$3,829 HKDSave up to HK$9,038 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
1.05ct Cushion
HK$3,829 HKD