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Oval|Lab Grown|IGI

1.66ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG627421853

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG627421853

Diamond specifications and retailer prices

From HK$2,385 HKD
$304 USD
As of November 1, 2026
Save HK$9,575 HKD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$11,961 HKD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.66ct lab-grown oval diamond

This 1.66ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG627421853 or 627421853. Listed at 20 retailers as of November 1, 2026, with prices from HK$2,385 to HK$11,961, a HK$9,575 spread on the same certified stone. Reve Diamonds lists it at HK$11,961. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.66
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627421853
Dimensions9.36 × 6.73 × 4.18 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.36 mm6.73 mm1.66 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627421853
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.1%

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 1
Current: HK$3,782 HKD|Low: HK$2,291 HKD|High: HK$14,515 HKD|Avg: HK$6,299 HKD|-1.2%
Retailer 1
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
Reve Diamonds
November 2, 2026
Retailer 14HK$2,385 HKD
Retailer 8HK$2,660 HKD
Retailer 4HK$2,762 HKD
Retailer 15HK$2,958 HKD
Retailer 1HK$3,782 HKD
Retailer 3HK$4,158 HKD
Retailer 16HK$4,464 HKD
Retailer 11HK$4,811 HKD
Retailer 7HK$4,825 HKD
Retailer 9HK$5,206 HKD
Retailer 12HK$5,345 HKD
Retailer 6HK$7,619 HKD
Retailer 5HK$7,689 HKD
Retailer 2HK$9,494 HKD
Retailer 13HK$9,886 HKD
Retailer 10HK$11,838 HKD
Reve DiamondsHK$11,961 HKD

36 data points across 17 retailers

20 retailersHK$2,385 HKD to HK$11,961 HKD

A
Cheapest Retailer
-
HK$2,385 HKD
$304 USD
A
Retailer 2
-
HK$2,660 HKD
$339 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,762 HKD
$352 USD
View
A
Retailer 4
-
HK$2,958 HKD
$377 USD
View
Retailer 5
-
HK$2,958 HKD
$377 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
HK$3,782 HKD
£380 GBP
View
A
Retailer 7
-
HK$4,158 HKD
$530 USD
View
A
Retailer 8
-
HK$4,464 HKD
$569 USD
View
B+
Retailer 9
-
HK$4,811 HKD
€584 EUR
View
B+
Retailer 10
-
HK$4,825 HKD
$615 USD
View
B+
Retailer 11
-
HK$5,206 HKD
£522 GBP
View
B+
Retailer 12
-
HK$5,345 HKD
A$1,048 AUD
View
B+
Retailer 13
-
HK$5,618 HKD
$716 USD
View
B+
Retailer 14
-
HK$7,619 HKD
$971 USD
View
Retailer 15
-
HK$7,689 HKD
$980 USD
View
Price last confirmed 12 days ago
B
Retailer 16
-
HK$9,494 HKD
$1,210 USD
View
B
Retailer 17
-
HK$9,867 HKD
$1,258 USD
View
B
Retailer 18
-
HK$9,886 HKD
$1,260 USD
View
B
Retailer 19
-
HK$11,838 HKD
£1,188 GBP
View
Most Expensive
B
Reve Diamonds
D564D4A9A · Nov 1
HK$11,961 HKD
$1,524 USD
View
19 more retailers have this diamond
Prices start from HK$2,385 HKDSave up to HK$9,575 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 Oval
HK$2,385 HKD