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Cushion|Lab Grown|IGI

1.83ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG840634991

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840634991

Diamond specifications and retailer prices

From HK$5,618 HKD
$716 USD
As of October 30, 2026
Save HK$28,433 HKD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$34,050 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.83ct lab-grown cushion diamond

This 1.83ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG840634991 or 840634991. Listed at 17 retailers as of October 30, 2026, with prices from HK$5,618 to HK$34,050, a HK$28,433 spread on the same certified stone. Brilliant Earth lists it at HK$34,050. 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

1.83
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634991
Dimensions9.18 × 6.13 × 4.11 mm
L/W Ratio1.50
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
9.18 mm6.13 mm1.83 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634991
Side View
Table 59.0%Crown 34.6°Girdle: MED-THKPavilion 34.8°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 30
Current: HK$34,050 HKD|Low: HK$5,618 HKD|High: HK$45,976 HKD|Avg: HK$16,630 HKD|-25.9%
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
October 31, 2026
Retailer 4HK$5,618 HKD
Retailer 11HK$6,518 HKD
Retailer 15HK$7,100 HKD
Retailer 5HK$7,767 HKD
Retailer 16HK$9,391 HKD
Retailer 12HK$9,634 HKD
Retailer 2HK$9,795 HKD
Retailer 14HK$10,562 HKD
Retailer 17HK$12,082 HKD
Retailer 10HK$13,322 HKD
Retailer 6HK$18,830 HKD
Retailer 3HK$19,841 HKD
Retailer 7HK$20,349 HKD
Retailer 13HK$24,342 HKD
Retailer 9HK$27,609 HKD
Retailer 8HK$27,891 HKD
Brilliant EarthHK$34,050 HKD

13 data points across 17 retailers

17 retailersHK$5,618 HKD to HK$34,050 HKD

A
Cheapest Retailer
-
HK$5,618 HKD
$716 USD
Final sale: no returns
A
Retailer 2
-
HK$6,518 HKD
£654 GBP
View
A
Retailer 3
-
HK$7,100 HKD
$905 USD
View
A
Retailer 4
-
HK$7,767 HKD
$990 USD
View
A
Retailer 5
-
HK$9,391 HKD
$1,197 USD
View
A
Retailer 6
-
HK$9,634 HKD
£967 GBP
View
A
Retailer 7
-
HK$9,795 HKD
€1,189 EUR
View
A
Retailer 8
-
HK$10,562 HKD
ZAR 21,748 ZAR
View
A
Retailer 9
-
HK$12,082 HKD
$1,540 USD
View
B+
Retailer 10
-
HK$13,322 HKD
$1,698 USD
View
B+
Retailer 11
-
HK$18,830 HKD
$2,400 USD
View
B+
Retailer 12
-
HK$19,841 HKD
$2,529 USD
View
B+
Retailer 13
-
HK$20,349 HKD
SGD 3,505 SGD
View
B
Retailer 14
-
HK$24,342 HKD
£2,443 GBP
View
B
Retailer 15
-
HK$27,609 HKD
$3,519 USD
View
Retailer 16
-
HK$27,891 HKD
$3,555 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21861636A · Oct 31
HK$34,050 HKD
$4,340 USD
View
16 more retailers have this diamond
Prices start from HK$5,618 HKDSave up to HK$28,433 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
1.83ct Cushion
HK$5,618 HKD