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Round|Lab Grown|IGI

1.77ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG620415433

Shape and cutting style on the report: Round brilliant

Certificate IGI LG620415433

Diamond specifications and retailer prices

From HK$1,938 HKD
$247 USD
As of October 29, 2026
Save HK$10,930 HKD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$12,868 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.77ct lab-grown round diamond

This 1.77ct lab-grown round 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 LG620415433 or 620415433. Listed at 19 retailers as of October 29, 2026, with prices from HK$1,938 to HK$12,868, a HK$10,930 spread on the same certified stone. Brilliant Earth lists it at HK$12,868. 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

1.77
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620415433
Dimensions7.82 × 7.86 × 4.75 mm
L/W Ratio1.01
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
7.82 mm7.86 mm1.77 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620415433
Side View
Table 59.0%Crown 33.2°Girdle: MediumPavilion 41.1°Culet: NoneDepth 60.6%

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 29
Current: HK$12,868 HKD|Low: HK$1,860 HKD|High: HK$14,437 HKD|Avg: HK$5,167 HKD|+9.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 9HK$1,938 HKD
Retailer 3HK$2,173 HKD
Retailer 10HK$2,401 HKD
Retailer 11HK$2,401 HKD
Retailer 8HK$3,233 HKD
Retailer 5HK$3,963 HKD
Retailer 4HK$4,172 HKD
Retailer 2HK$4,544 HKD
Retailer 6HK$7,752 HKD
Retailer 7HK$9,646 HKD
Brilliant EarthHK$12,868 HKD

36 data points across 11 retailers

19 retailersHK$1,938 HKD to HK$12,868 HKD

A
Cheapest Retailer
-
HK$1,938 HKD
$247 USD
A
Retailer 2
-
HK$1,938 HKD
$247 USD
View
Price last confirmed 34 days ago
A
Retailer 3
-
HK$2,173 HKD
$277 USD
View
Final sale: no returns
A
Retailer 4
-
HK$2,252 HKD
$287 USD
View
Price last confirmed 37 days ago
A
Retailer 5
-
HK$2,370 HKD
$302 USD
View
Price last confirmed 33 days ago
A
Retailer 6
-
HK$2,401 HKD
$306 USD
View
A
Retailer 7
-
HK$2,401 HKD
$306 USD
View
A
Retailer 8
-
HK$2,712 HKD
View
B+
Retailer 9
-
HK$3,233 HKD
$412 USD
View
A
Retailer 10
-
HK$3,963 HKD
€481 EUR
View
A
Retailer 11
-
HK$4,172 HKD
£419 GBP
View
B+
Retailer 12
-
HK$4,449 HKD
$567 USD
View
A
Retailer 13
-
HK$4,544 HKD
£456 GBP
View
B+
Retailer 14
-
HK$5,037 HKD
$642 USD
View
B
Retailer 15
-
HK$7,729 HKD
$985 USD
View
B
Retailer 16
-
HK$7,729 HKD
$985 USD
View
Price last confirmed 38 days ago
B
Retailer 17
-
HK$7,752 HKD
$988 USD
View
B
Retailer 18
-
HK$9,646 HKD
£968 GBP
View
Most Expensive
B
Brilliant Earth
19043514A · Oct 29
HK$12,868 HKD
$1,640 USD
View
18 more retailers have this diamond
Prices start from HK$1,938 HKDSave up to HK$10,930 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 Round
HK$1,938 HKD