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Radiant|Lab Grown|IGI

1.66ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG468109140

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

Certificate IGI LG468109140

Diamond specifications and retailer prices

From HK$2,479 HKD
$316 USD
As of November 2, 2026
Save HK$19,568 HKD (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$22,048 HKD at Do Amore Diamonds · As of November 2, 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG468109140 or 468109140. Listed at 10 retailers as of November 2, 2026, with prices from HK$2,479 to HK$22,048, a HK$19,568 spread on the same certified stone. Do Amore Diamonds lists it at HK$22,048. 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

1.66
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG468109140
Dimensions8.22 × 5.67 × 3.94 mm
L/W Ratio1.45
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
8.22 mm5.67 mm1.66 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG468109140
Side View
Table 63.5%Crown 38.4°Girdle: MED-STKPavilionCulet: NoneDepth 69.5%

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$22,048 HKD|Low: HK$2,001 HKD|High: HK$22,048 HKD|Avg: HK$7,916 HKD
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
November 1, 2026
Retailer 8HK$2,479 HKD
Retailer 12HK$2,778 HKD
Retailer 11HK$2,880 HKD
Retailer 4HK$4,543 HKD
Retailer 10HK$4,998 HKD
Retailer 6HK$5,022 HKD
Retailer 13HK$5,147 HKD
Retailer 3HK$6,685 HKD
Retailer 7HK$9,015 HKD
Retailer 9HK$10,906 HKD
Retailer 5HK$11,380 HKD
Retailer 2HK$13,253 HKD
Do Amore DiamondsHK$22,048 HKD

13 data points across 13 retailers

10 retailersHK$2,479 HKD to HK$22,048 HKD

A
Cheapest Retailer
-
HK$2,479 HKD
$316 USD
A
Retailer 2
-
HK$2,778 HKD
$354 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,880 HKD
$367 USD
View
B+
Retailer 4
-
HK$4,998 HKD
$637 USD
View
B+
Retailer 5
-
HK$5,022 HKD
$640 USD
View
B+
Retailer 6
-
HK$5,147 HKD
$656 USD
View
B
Retailer 7
-
HK$9,015 HKD
$1,149 USD
View
B
Retailer 8
-
HK$10,906 HKD
$1,390 USD
View
B
Retailer 9
-
HK$13,253 HKD
£1,330 GBP
View
Most Expensive
B
Do Amore Diamonds
27-0ED26BBBB · Nov 2
HK$22,048 HKD
$2,810 USD
View
9 more retailers have this diamond
Prices start from HK$2,479 HKDSave up to HK$19,568 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$2,479 HKD