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Radiant|Lab Grown|IGI

1.77ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG665410575

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

Certificate IGI LG665410575

Diamond specifications and retailer prices

From HK$2,597 HKD
$331 USD
As of October 27, 2026
Save HK$33,732 HKD (93%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: HK$36,329 HKD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.77ct lab-grown radiant diamond

This 1.77ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG665410575 or 665410575. Listed at 30 retailers as of October 27, 2026, with prices from HK$2,597 to HK$36,329, a HK$33,732 spread on the same certified stone. Brilliant Earth lists it at HK$36,329. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.7°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665410575
Dimensions6.16 × 6.16 × 3.99 mm
L/W Ratio1.00
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
6.16 mm6.16 mm1.77 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665410575
Side View
Table 61.0%Crown 40.7°Girdle: MediumPavilion 33.9°Culet: NoneDepth 64.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: HK$36,329 HKD|Low: HK$2,597 HKD|High: HK$36,329 HKD|Avg: HK$9,697 HKD
Brilliant Earth
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 29, 2026
Retailer 3HK$2,597 HKD
Retailer 19HK$2,911 HKD
Retailer 10HK$3,716 HKD
Retailer 18HK$4,433 HKD
Retailer 4HK$4,551 HKD
Retailer 21HK$5,232 HKD
Retailer 8HK$5,320 HKD
Retailer 17HK$5,539 HKD
Retailer 2HK$5,753 HKD
Retailer 9HK$7,333 HKD
Retailer 16HK$7,513 HKD
Retailer 22HK$9,455 HKD
Retailer 5HK$10,687 HKD
Retailer 12HK$10,707 HKD
Retailer 14HK$10,811 HKD
Retailer 15HK$10,828 HKD
Retailer 7HK$12,185 HKD
Retailer 6HK$12,654 HKD
Retailer 13HK$12,984 HKD
Retailer 11HK$13,521 HKD
Retailer 20HK$20,950 HKD
Brilliant EarthHK$36,329 HKD

34 data points across 22 retailers

30 retailersHK$2,597 HKD to HK$36,329 HKD

A
Cheapest Retailer
-
HK$2,597 HKD
$331 USD
A
Retailer 2
-
HK$2,597 HKD
$331 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
HK$2,707 HKD
$345 USD
View
Price last confirmed 29 days ago
A
Retailer 4
-
HK$2,911 HKD
$371 USD
View
Final sale: no returns
A
Retailer 5
-
HK$3,146 HKD
$401 USD
View
Price last confirmed 32 days ago
A
Retailer 6
-
HK$3,225 HKD
$411 USD
View
Price last confirmed 26 days ago
A
Retailer 7
-
HK$3,319 HKD
$423 USD
View
Price last confirmed 30 days ago
A
Retailer 8
-
HK$3,716 HKD
View
A
Retailer 9
-
HK$4,433 HKD
$565 USD
View
A
Retailer 10
-
HK$4,551 HKD
$580 USD
View
A
Retailer 11
-
HK$5,232 HKD
€635 EUR
View
A
Retailer 12
-
HK$5,320 HKD
$678 USD
View
A
Retailer 13
-
HK$5,539 HKD
ZAR 11,405 ZAR
View
A
Retailer 14
-
HK$5,753 HKD
£577 GBP
View
A
Retailer 15
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HK$7,333 HKD
$935 USD
View
A
Retailer 16
-
HK$7,513 HKD
A$1,473 AUD
View
A
Retailer 17
-
HK$9,455 HKD
$1,205 USD
View
B+
Retailer 18
-
HK$10,365 HKD
$1,321 USD
View
Price last confirmed 19 days ago
B+
Retailer 19
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HK$10,365 HKD
$1,321 USD
View
B+
Retailer 20
-
HK$10,687 HKD
$1,362 USD
View
B+
Retailer 21
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HK$10,707 HKD
$1,365 USD
View
B+
Retailer 22
-
HK$10,804 HKD
$1,377 USD
View
Price last confirmed 28 days ago
B+
Retailer 23
-
HK$10,811 HKD
SGD 1,862 SGD
View
B+
Retailer 24
-
HK$10,828 HKD
$1,380 USD
View
B+
Retailer 25
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HK$12,185 HKD
$1,553 USD
View
B+
Retailer 26
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HK$12,654 HKD
$1,613 USD
View
B+
Retailer 27
-
HK$12,984 HKD
£1,303 GBP
View
B+
Retailer 28
-
HK$13,521 HKD
A$2,651 AUD
View
Price last confirmed 26 days ago
B+
Retailer 29
-
HK$20,950 HKD
$2,670 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
12598441A · Oct 28
HK$36,329 HKD
$4,630 USD
View
29 more retailers have this diamond
Prices start from HK$2,597 HKDSave up to HK$33,732 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
1.77ct Radiant
HK$2,597 HKD