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Radiant|Lab Grown|IGI

1.66ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG800676877

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG800676877

Diamond specifications and retailer prices

From HK$4,449 HKD
$567 USD
As of November 2, 2026
Save HK$35,017 HKD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$39,466 HKD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 1.66ct lab-grown radiant diamond

This 1.66ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800676877 or 800676877. Listed at 14 retailers as of November 1, 2026, with prices from HK$4,449 to HK$39,466, a HK$35,017 spread on the same certified stone. Do Amore Diamonds lists it at HK$39,466. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800676877
Dimensions8.55 × 5.88 × 3.87 mm
L/W Ratio1.45
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
8.55 mm5.88 mm1.66 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800676877
Side View
Table 62.0%Crown 40.8°Girdle: Slightly ThickPavilion 34.1°Culet: NoneDepth 65.8%

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: Nov 2
Current: HK$39,466 HKD|Low: HK$4,449 HKD|High: HK$46,135 HKD|Avg: HK$16,949 HKD|-14.5%
Do Amore Diamonds
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 8HK$4,449 HKD
Retailer 14HK$4,982 HKD
Retailer 6HK$5,916 HKD
Retailer 10HK$6,536 HKD
Retailer 4HK$6,630 HKD
Retailer 5HK$8,027 HKD
Retailer 9HK$8,489 HKD
Retailer 2HK$9,763 HKD
Retailer 11HK$13,684 HKD
Retailer 12HK$16,006 HKD
Retailer 13HK$24,015 HKD
Retailer 7HK$28,874 HKD
Retailer 3HK$31,071 HKD
Do Amore DiamondsHK$39,466 HKD

31 data points across 14 retailers

14 retailersHK$4,449 HKD to HK$39,466 HKD

A
Cheapest Retailer
-
HK$4,449 HKD
$567 USD
A
Retailer 2
-
HK$4,982 HKD
$635 USD
View
A
Retailer 3
-
HK$5,916 HKD
$754 USD
View
Final sale: no returns
A
Retailer 4
-
HK$6,536 HKD
$833 USD
View
A
Retailer 5
-
HK$6,630 HKD
$845 USD
View
A
Retailer 6
-
HK$8,027 HKD
$1,023 USD
View
A
Retailer 7
-
HK$8,489 HKD
$1,082 USD
View
B+
Retailer 8
-
HK$9,763 HKD
€1,185 EUR
View
B+
Retailer 9
-
HK$13,684 HKD
$1,744 USD
View
B+
Retailer 10
-
HK$16,006 HKD
$2,040 USD
View
B
Retailer 11
-
HK$24,015 HKD
£2,410 GBP
View
B
Retailer 12
-
HK$28,874 HKD
$3,680 USD
View
B
Retailer 13
-
HK$31,071 HKD
$3,960 USD
View
Most Expensive
B
Do Amore Diamonds
27-C7490B28A · Nov 1
HK$39,466 HKD
$5,030 USD
View
13 more retailers have this diamond
Prices start from HK$4,449 HKDSave up to HK$35,017 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
1.66ct Radiant
HK$4,449 HKD