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1.09ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG775620770

Shape and cutting style on the report: Round brilliant

Certificate IGI LG775620770

Diamond specifications and retailer prices

From HK$1,122 HKD
$143 USD
As of October 26, 2026
Save HK$5,405 HKD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$6,526 HKD at MOH London · As of October 26, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG775620770 or 775620770. Listed at 17 retailers as of October 26, 2026, with prices from HK$1,122 to HK$6,526, a HK$5,405 spread on the same certified stone. MOH London lists it at HK$6,526. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG775620770
Dimensions6.59 × 6.64 × 4.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.59 mm6.64 mm1.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG775620770
Side View
Table 57.0%Crown 33.7°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.2%

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 26
Current: HK$6,526 HKD|Low: HK$1,122 HKD|High: HK$6,975 HKD|Avg: HK$3,082 HKD|-5.3%
MOH London
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
October 31, 2026
Retailer 4HK$1,122 HKD
Retailer 17HK$1,255 HKD
Retailer 16HK$1,302 HKD
Retailer 3HK$1,397 HKD
Retailer 14HK$1,607 HKD
Retailer 2HK$2,373 HKD
Retailer 13HK$2,375 HKD
Retailer 15HK$2,518 HKD
Retailer 5HK$2,597 HKD
Retailer 8HK$2,907 HKD
Retailer 7HK$3,342 HKD
Retailer 9HK$3,374 HKD
Retailer 10HK$3,468 HKD
Retailer 12HK$3,803 HKD
Retailer 11HK$4,080 HKD
Retailer 6HK$4,480 HKD
MOH LondonHK$6,526 HKD

40 data points across 17 retailers

17 retailersHK$1,122 HKD to HK$6,526 HKD

A
Cheapest Retailer
-
HK$1,122 HKD
$143 USD
A
Retailer 2
-
HK$1,302 HKD
$166 USD
View
Retailer 3
-
HK$1,397 HKD
$178 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
HK$1,607 HKD
View
A
Retailer 5
-
HK$2,373 HKD
€288 EUR
View
A
Retailer 6
-
HK$2,375 HKD
£238 GBP
View
A
Retailer 7
-
HK$2,518 HKD
$321 USD
View
B+
Retailer 8
-
HK$2,597 HKD
$331 USD
View
Retailer 9
-
HK$2,907 HKD
£292 GBP
View
Price last confirmed 15 days ago
B+
Retailer 10
-
HK$3,342 HKD
$426 USD
View
Retailer 11
-
HK$3,374 HKD
$430 USD
View
Price last confirmed 24 days ago
B+
Retailer 12
-
HK$3,468 HKD
$442 USD
View
B+
Retailer 13
-
HK$3,662 HKD
A$718 AUD
View
B+
Retailer 14
-
HK$3,803 HKD
SGD 655 SGD
View
B+
Retailer 15
-
HK$4,080 HKD
$520 USD
View
B+
Retailer 16
-
HK$4,480 HKD
$571 USD
View
Price last confirmed 7 days ago
Most Expensive
B
MOH London
LG775620770 · Oct 26
HK$6,526 HKD
£655 GBP
View
16 more retailers have this diamond
Prices start from HK$1,122 HKDSave up to HK$5,405 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$1,122 HKD