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Cushion|Lab Grown|IGI

1.83ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG770669255

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG770669255

Diamond specifications and retailer prices

From HK$6,410 HKD
$817 USD
As of October 30, 2026
Save HK$8,795 HKD (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$26,518 HKD at Rare Carat · As of October 21, 2026
View at Rare Carat

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG770669255 or 770669255. Listed at 12 retailers as of October 30, 2026, with a 137% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.83
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770669255
Dimensions8.60 × 6.37 × 4.33 mm
L/W Ratio1.35
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
8.60 mm6.37 mm1.83 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770669255
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 36.9°Culet: NoneDepth 68.0%

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$26,518 HKD|Low: HK$6,410 HKD|High: HK$28,088 HKD|Avg: HK$14,070 HKD|-5.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 11HK$6,410 HKD
Retailer 4HK$6,459 HKD
Retailer 2HK$6,633 HKD
Retailer 9HK$6,637 HKD
Retailer 5HK$6,980 HKD
Retailer 10HK$11,510 HKD
Retailer 8HK$13,322 HKD
Retailer 6HK$14,936 HKD
Retailer 7HK$15,205 HKD
Retailer 3HK$24,851 HKD
Rare CaratHK$26,518 HKD

45 data points across 11 retailers

12 retailersHK$6,410 HKD to HK$15,205 HKD

A
Cheapest Retailer
-
HK$6,410 HKD
$817 USD
A
Retailer 2
-
HK$6,459 HKD
€784 EUR
View
A
Retailer 3
-
HK$6,633 HKD
£666 GBP
View
A
Retailer 4
-
HK$6,637 HKD
$846 USD
View
A
Retailer 5
-
HK$6,980 HKD
ZAR 14,373 ZAR
View
A
Retailer 6
-
HK$11,510 HKD
$1,467 USD
View
B+
Retailer 7
-
HK$13,322 HKD
$1,698 USD
View
B+
Retailer 8
-
HK$14,161 HKD
$1,805 USD
View
B+
Retailer 9
-
HK$14,936 HKD
£1,499 GBP
View
B+
Retailer 10
-
HK$15,205 HKD
$1,938 USD
View
Retailer 11
-
HK$24,851 HKD
A$4,873 AUD
View
Price last confirmed 24 days ago
Most Expensive
Rare Carat
LB448 · Oct 21
HK$26,518 HKD
$3,380 USD
View
Price last confirmed 10 days ago
11 more retailers have this diamond
Prices start from HK$6,410 HKDSave up to HK$8,795 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$6,410 HKD