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Cushion|Lab Grown|IGI

1.03ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG840634759

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840634759

Diamond specifications and retailer prices

From HK$3,609 HKD
$460 USD
As of October 25, 2026
Save HK$14,436 HKD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$18,045 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.03ct lab-grown cushion diamond

This 1.03ct 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 LG840634759 or 840634759. Listed at 14 retailers as of October 25, 2026, with prices from HK$3,609 to HK$18,045, a HK$14,436 spread on the same certified stone. Brilliant Earth lists it at HK$18,045. 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

1.03
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634759
Dimensions7.36 × 5.18 × 3.47 mm
L/W Ratio1.42
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
7.36 mm5.18 mm1.03 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634759
Side View
Table 66.0%Crown 32.6°Girdle: MED-THKPavilion 38.5°Culet: NoneDepth 67.0%

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 25
Current: HK$18,045 HKD|Low: HK$3,609 HKD|High: HK$18,045 HKD|Avg: HK$7,505 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
October 31, 2026
Retailer 12HK$3,609 HKD
Retailer 8HK$3,724 HKD
Retailer 14HK$4,919 HKD
Retailer 11HK$4,943 HKD
Retailer 4HK$5,767 HKD
Retailer 9HK$5,816 HKD
Retailer 10HK$6,197 HKD
Retailer 2HK$6,513 HKD
Retailer 7HK$9,007 HKD
Retailer 5HK$9,580 HKD
Retailer 6HK$10,749 HKD
Retailer 3HK$11,902 HKD
Retailer 13HK$14,109 HKD
Brilliant EarthHK$18,045 HKD

15 data points across 14 retailers

14 retailersHK$3,609 HKD to HK$18,045 HKD

A
Cheapest Retailer
-
HK$3,609 HKD
$460 USD
A
Retailer 2
-
HK$3,724 HKD
£374 GBP
View
A
Retailer 3
-
HK$4,919 HKD
$627 USD
View
A
Retailer 4
-
HK$4,943 HKD
$630 USD
View
A
Retailer 5
-
HK$5,767 HKD
$735 USD
View
A
Retailer 6
-
HK$5,816 HKD
€706 EUR
View
A
Retailer 7
-
HK$6,197 HKD
ZAR 12,761 ZAR
View
B+
Retailer 8
-
HK$6,513 HKD
£654 GBP
View
B+
Retailer 9
-
HK$9,007 HKD
$1,148 USD
View
B+
Retailer 10
-
HK$9,580 HKD
SGD 1,650 SGD
View
Retailer 11
-
HK$10,749 HKD
$1,370 USD
View
Price last confirmed 12 days ago
B
Retailer 12
-
HK$11,902 HKD
$1,517 USD
View
B
Retailer 13
-
HK$14,109 HKD
£1,416 GBP
View
Most Expensive
B
Brilliant Earth
21861645A · Oct 30
HK$18,045 HKD
$2,300 USD
View
13 more retailers have this diamond
Prices start from HK$3,609 HKDSave up to HK$14,436 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
1.03ct Cushion
HK$3,609 HKD