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1.09ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG480171497

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480171497

Diamond specifications and retailer prices

From HK$5,021 HKD
$640 USD
As of October 31, 2026
Save HK$30,630 HKD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$35,651 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG480171497 or 480171497. Listed at 12 retailers as of October 29, 2026, with prices from HK$5,021 to HK$35,651, a HK$30,630 spread on the same certified stone. MOH London lists it at HK$35,651. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480171497
Dimensions6.48 × 6.52 × 4.12 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
6.48 mm6.52 mm1.09 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG480171497
Side View
Table 55.5%Crown 36.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.4%

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 31
Current: HK$35,651 HKD|Low: HK$5,021 HKD|High: HK$35,940 HKD|Avg: HK$15,599 HKD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 4HK$5,021 HKD
Retailer 5HK$9,517 HKD
Retailer 9HK$10,654 HKD
Retailer 6HK$11,039 HKD
Retailer 8HK$11,039 HKD
Retailer 10HK$12,396 HKD
Retailer 11HK$15,464 HKD
Retailer 7HK$17,504 HKD
Retailer 2HK$18,840 HKD
Retailer 3HK$21,144 HKD
MOH LondonHK$35,651 HKD

21 data points across 11 retailers

12 retailersHK$5,021 HKD to HK$35,651 HKD

A
Cheapest Retailer
-
HK$5,021 HKD
$640 USD
B+
Retailer 2
-
HK$9,517 HKD
$1,213 USD
View
B+
Retailer 3
-
HK$10,348 HKD
$1,319 USD
View
B+
Retailer 4
-
HK$10,654 HKD
$1,358 USD
View
Final sale: no returns
Retailer 5
-
HK$11,039 HKD
$1,407 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
HK$11,039 HKD
$1,407 USD
View
B
Retailer 7
-
HK$12,396 HKD
$1,580 USD
View
B
Retailer 8
-
HK$17,504 HKD
$2,231 USD
View
B
Retailer 9
-
HK$18,840 HKD
€2,287 EUR
View
B
Retailer 10
-
HK$20,689 HKD
$2,637 USD
View
B
Retailer 11
-
HK$21,144 HKD
$2,695 USD
View
Most Expensive
B
MOH London
LG480171497 · Oct 29
HK$35,651 HKD
£3,578 GBP
View
11 more retailers have this diamond
Prices start from HK$5,021 HKDSave up to HK$30,630 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$5,021 HKD