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Radiant|Lab Grown|IGI

2.66ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG778667127

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

Certificate IGI LG778667127

Diamond specifications and retailer prices

From HK$7,783 HKD
$992 USD
As of October 30, 2026
Save HK$33,093 HKD (81%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: HK$40,876 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.66ct lab-grown radiant diamond

This 2.66ct lab-grown radiant sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG778667127 or 778667127. Listed at 27 retailers as of October 30, 2026, with prices from HK$7,783 to HK$40,876, a HK$33,093 spread on the same certified stone. Brilliant Earth lists it at HK$40,876. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.66
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778667127
Dimensions8.09 × 7.41 × 4.83 mm
L/W Ratio1.09
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.09 mm7.41 mm2.66 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778667127
Side View
Table 67.0%Crown 42.6°Girdle: Slightly ThickPavilion 34°Culet: NoneDepth 65.2%

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$40,876 HKD|Low: HK$7,469 HKD|High: HK$40,876 HKD|Avg: HK$20,388 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 12
Retailer 13
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 2, 2026
Retailer 6HK$7,783 HKD
Retailer 5HK$8,466 HKD
Retailer 9HK$8,709 HKD
Retailer 12HK$9,023 HKD
Retailer 24HK$10,396 HKD
Retailer 4HK$10,444 HKD
Retailer 11HK$10,984 HKD
Retailer 3HK$12,906 HKD
Retailer 2HK$13,925 HKD
Retailer 20HK$14,359 HKD
Retailer 8HK$16,915 HKD
Retailer 22HK$17,268 HKD
Retailer 19HK$21,424 HKD
Retailer 15HK$22,038 HKD
Retailer 7HK$22,627 HKD
Retailer 23HK$23,282 HKD
Retailer 16HK$24,870 HKD
Retailer 18HK$27,978 HKD
Retailer 10HK$29,182 HKD
Retailer 14HK$30,254 HKD
Retailer 21HK$30,517 HKD
Retailer 13HK$30,610 HKD
Retailer 17HK$31,450 HKD
Brilliant EarthHK$40,876 HKD

33 data points across 24 retailers

27 retailersHK$7,783 HKD to HK$40,876 HKD

A
Cheapest Retailer
-
HK$7,783 HKD
$992 USD
A
Retailer 2
-
HK$8,466 HKD
$1,079 USD
View
A
Retailer 3
-
HK$8,709 HKD
$1,110 USD
View
Final sale: no returns
A
Retailer 4
-
HK$9,023 HKD
$1,150 USD
View
Retailer 5
-
HK$9,023 HKD
$1,150 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
HK$10,396 HKD
$1,325 USD
View
A
Retailer 7
-
HK$10,444 HKD
View
A
Retailer 8
-
HK$10,984 HKD
$1,400 USD
View
A
Retailer 9
-
HK$12,906 HKD
$1,645 USD
View
A
Retailer 10
-
HK$13,925 HKD
£1,397 GBP
View
A
Retailer 11
-
HK$14,359 HKD
€1,743 EUR
View
A
Retailer 12
-
HK$16,915 HKD
$2,156 USD
View
A
Retailer 13
-
HK$17,268 HKD
$2,201 USD
View
A
Retailer 14
-
HK$17,739 HKD
$2,261 USD
View
B+
Retailer 15
-
HK$21,424 HKD
A$4,201 AUD
View
B+
Retailer 16
-
HK$22,038 HKD
$2,809 USD
View
B+
Retailer 17
-
HK$22,627 HKD
$2,884 USD
View
B+
Retailer 18
-
HK$23,282 HKD
ZAR 47,940 ZAR
View
B+
Retailer 19
-
HK$24,870 HKD
£2,496 GBP
View
B+
Retailer 20
-
HK$26,660 HKD
$3,398 USD
View
B+
Retailer 21
-
HK$27,978 HKD
$3,566 USD
View
B+
Retailer 22
-
HK$29,182 HKD
$3,720 USD
View
B+
Retailer 23
-
HK$30,254 HKD
SGD 5,211 SGD
View
B+
Retailer 24
-
HK$30,517 HKD
A$5,984 AUD
View
B+
Retailer 25
-
HK$30,610 HKD
£3,072 GBP
View
B+
Retailer 26
-
HK$31,450 HKD
$4,009 USD
View
Most Expensive
B
Brilliant Earth
18340359A · Oct 31
HK$40,876 HKD
$5,210 USD
View
26 more retailers have this diamond
Prices start from HK$7,783 HKDSave up to HK$33,093 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
2.66ct Radiant
HK$7,783 HKD