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Cushion|Lab Grown|IGI

1.00ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG825655920

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

Certificate IGI LG825655920

Diamond specifications and retailer prices

From HK$3,154 HKD
As of November 3, 2026
Save HK$15,205 HKD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$18,359 HKD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG825655920 or 825655920. Listed at 14 retailers as of November 3, 2026, with prices from HK$3,154 to HK$18,359, a HK$15,205 spread on the same certified stone. Brilliant Earth lists it at HK$18,359. 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

1.00
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825655920
Dimensions5.87 × 5.81 × 3.87 mm
L/W Ratio1.01
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
5.87 mm5.81 mm1.00 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825655920
Side View
Table 61.0%Crown 35°Girdle: MED-THKPavilion 40°Culet: NoneDepth 66.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: HK$18,359 HKD|Low: HK$3,154 HKD|High: HK$20,399 HKD|Avg: HK$7,971 HKD|-10.0%
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
November 5, 2026
Retailer 3HK$3,154 HKD
Retailer 7HK$3,366 HKD
Retailer 6HK$3,523 HKD
Retailer 9HK$4,668 HKD
Retailer 14HK$4,668 HKD
Retailer 4HK$5,594 HKD
Retailer 12HK$5,618 HKD
Retailer 2HK$5,814 HKD
Retailer 11HK$6,026 HKD
Retailer 5HK$10,435 HKD
Retailer 8HK$10,874 HKD
Retailer 13HK$13,354 HKD
Retailer 10HK$13,660 HKD
Brilliant EarthHK$18,359 HKD

35 data points across 14 retailers

14 retailersHK$3,154 HKD to HK$18,359 HKD

A
Cheapest Retailer
-
HK$3,154 HKD
Final sale: no returns
A
Retailer 2
-
HK$3,366 HKD
View
Retailer 3
-
HK$3,523 HKD
View
Price last confirmed 24 days ago
A
Retailer 4
-
HK$4,668 HKD
View
A
Retailer 5
-
HK$4,668 HKD
View
A
Retailer 6
-
HK$5,594 HKD
View
A
Retailer 7
-
HK$5,618 HKD
View
A
Retailer 8
-
HK$5,814 HKD
View
A
Retailer 9
-
HK$6,026 HKD
View
B
Retailer 10
-
HK$10,435 HKD
View
B
Retailer 11
-
HK$10,874 HKD
View
B
Retailer 12
-
HK$13,354 HKD
View
B
Retailer 13
-
HK$13,660 HKD
View
Most Expensive
B
Brilliant Earth
21581004A · Nov 4
HK$18,359 HKD
$2,340 USD
View
13 more retailers have this diamond
Prices start from HK$3,154 HKDSave up to HK$15,205 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
1.00ct Cushion
HK$3,154 HKD