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Round|Lab Grown|IGI

1.09ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG803603992

Shape and cutting style on the report: Round brilliant

Certificate IGI LG803603992

Diamond specifications and retailer prices

From HK$1,169 HKD
$149 USD
As of October 29, 2026
Save HK$6,997 HKD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$8,166 HKD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.09ct lab-grown round diamond

This 1.09ct 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 LG803603992 or 803603992. Listed at 17 retailers as of October 29, 2026, with prices from HK$1,169 to HK$8,166, a HK$6,997 spread on the same certified stone. Reve Diamonds lists it at HK$8,166. 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

1.09
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803603992
Dimensions6.65 × 6.62 × 4.05 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.65 mm6.62 mm1.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803603992
Side View
Table 57.0%Crown 34.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.1%

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: Oct 29
Current: HK$3,899 HKD|Low: HK$1,310 HKD|High: HK$8,166 HKD|Avg: HK$3,246 HKD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
October 30, 2026
Retailer 6HK$1,381 HKD
Retailer 7HK$1,467 HKD
Retailer 5HK$2,432 HKD
Retailer 2HK$2,513 HKD
Retailer 10HK$2,573 HKD
Retailer 8HK$2,715 HKD
Retailer 9HK$2,892 HKD
Retailer 3HK$3,611 HKD
Retailer 1HK$3,899 HKD
Retailer 4HK$4,001 HKD
Retailer 11HK$5,192 HKD
Retailer 12HK$6,815 HKD
Reve DiamondsHK$8,166 HKD

36 data points across 13 retailers

17 retailersHK$1,169 HKD to HK$8,166 HKD

A
Cheapest Retailer
-
HK$1,169 HKD
$149 USD
A
Retailer 2
-
HK$1,381 HKD
$176 USD
View
A
Retailer 3
-
HK$1,451 HKD
$185 USD
View
A
Retailer 4
-
HK$1,451 HKD
$185 USD
View
A
Retailer 5
-
HK$1,467 HKD
$187 USD
View
Final sale: no returns
A
Retailer 6
-
HK$2,432 HKD
$310 USD
View
A
Retailer 7
-
HK$2,513 HKD
€305 EUR
View
A
Retailer 8
-
HK$2,573 HKD
£258 GBP
View
B+
Retailer 9
-
HK$2,715 HKD
$346 USD
View
B+
Retailer 10
-
HK$2,892 HKD
£290 GBP
View
B+
Retailer 11
-
HK$3,611 HKD
A$708 AUD
View
B
Retailer 12
-
HK$3,899 HKD
$497 USD
View
Retailer 13
-
HK$4,001 HKD
$510 USD
View
Price last confirmed 14 days ago
B
Retailer 14
-
HK$4,660 HKD
$594 USD
View
B
Retailer 15
-
HK$5,192 HKD
$662 USD
View
B
Retailer 16
-
HK$6,815 HKD
£684 GBP
View
Most Expensive
B
Reve Diamonds
FDA9E6D5D · Oct 30
HK$8,166 HKD
$1,041 USD
View
16 more retailers have this diamond
Prices start from HK$1,169 HKDSave up to HK$6,997 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
1.09ct Round
HK$1,169 HKD