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Round|Lab Grown|IGI

1.05ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG780647301

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780647301

Diamond specifications and retailer prices

From HK$1,255 HKD
As of November 1, 2026
Save HK$7,098 HKD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$8,353 HKD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG780647301 or 780647301. Listed at 19 retailers as of November 1, 2026, with prices from HK$1,255 to HK$8,353, a HK$7,098 spread on the same certified stone. Reve Diamonds lists it at HK$8,353. 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

1.05
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780647301
Dimensions6.61 × 6.63 × 3.96 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.61 mm6.63 mm1.05 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780647301
Side View
Table 59.0%Crown 32.2°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 59.8%

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$2,652 HKD|Low: HK$1,200 HKD|High: HK$8,353 HKD|Avg: HK$3,407 HKD|+9.7%
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
Reve Diamonds
November 3, 2026
Retailer 11HK$1,255 HKD
Retailer 7HK$1,404 HKD
Retailer 15HK$1,451 HKD
Retailer 2HK$1,553 HKD
Retailer 12HK$1,553 HKD
Retailer 5HK$2,314 HKD
Retailer 1HK$2,652 HKD
Retailer 9HK$2,722 HKD
Retailer 6HK$2,816 HKD
Retailer 8HK$3,020 HKD
Retailer 13HK$3,217 HKD
Retailer 14HK$4,990 HKD
Retailer 4HK$5,272 HKD
Retailer 3HK$5,335 HKD
Retailer 10HK$7,257 HKD
Reve DiamondsHK$8,353 HKD

36 data points across 16 retailers

19 retailersHK$1,255 HKD to HK$8,353 HKD

A
Cheapest Retailer
-
HK$1,255 HKD
A
Retailer 2
-
HK$1,404 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$1,451 HKD
View
Retailer 4
-
HK$1,553 HKD
View
Price last confirmed 12 days ago
A
Retailer 5
-
HK$1,553 HKD
View
A
Retailer 6
-
HK$1,600 HKD
View
A
Retailer 7
-
HK$2,314 HKD
View
B+
Retailer 8
-
HK$2,652 HKD
View
B+
Retailer 9
-
HK$2,722 HKD
View
B+
Retailer 10
-
HK$2,816 HKD
View
B+
Retailer 11
-
HK$3,020 HKD
View
Retailer 12
-
HK$3,217 HKD
View
Price last confirmed 12 days ago
B+
Retailer 13
-
HK$3,468 HKD
View
B
Retailer 14
-
HK$4,990 HKD
View
B
Retailer 15
-
HK$5,272 HKD
View
B
Retailer 16
-
HK$5,335 HKD
View
B
Retailer 17
-
HK$5,421 HKD
View
B
Retailer 18
-
HK$7,257 HKD
View
Most Expensive
B
Reve Diamonds
911778019 · Nov 1
HK$8,353 HKD
$1,065 USD
View
18 more retailers have this diamond
Prices start from HK$1,255 HKDSave up to HK$7,098 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
1.05ct Round
HK$1,255 HKD