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Radiant|Lab Grown|IGI

1.09ct E VS1 Radiant Lab Grown Diamond

VG • E/VS1 • IGI LG645435170

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG645435170

Diamond specifications and retailer prices

From HK$1,711 HKD
$218 USD
As of October 27, 2026
Save HK$8,100 HKD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$9,811 HKD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG645435170 or 645435170. Listed at 17 retailers as of October 27, 2026, with prices from HK$1,711 to HK$9,811, a HK$8,100 spread on the same certified stone. Reve Diamonds lists it at HK$9,811. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.09
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645435170
Dimensions7.28 × 4.98 × 3.42 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.28 mm4.98 mm1.09 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645435170
Side View
Table 68.0%Crown 40.2°Girdle: MediumPavilion 31.9°Culet: NoneDepth 68.7%

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 27
Current: HK$3,934 HKD|Low: HK$1,836 HKD|High: HK$9,811 HKD|Avg: HK$5,410 HKD|+9.3%
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 4HK$1,915 HKD
Retailer 12HK$2,966 HKD
Retailer 11HK$3,625 HKD
Retailer 6HK$3,640 HKD
Retailer 1HK$3,934 HKD
Retailer 2HK$3,978 HKD
Retailer 7HK$5,177 HKD
Retailer 10HK$6,811 HKD
Retailer 8HK$6,834 HKD
Retailer 3HK$7,226 HKD
Retailer 5HK$8,540 HKD
Retailer 9HK$8,866 HKD
Reve DiamondsHK$9,811 HKD

43 data points across 13 retailers

17 retailersHK$1,711 HKD to HK$9,811 HKD

A
Cheapest Retailer
-
HK$1,711 HKD
$218 USD
A
Retailer 2
-
HK$1,915 HKD
$244 USD
View
Final sale: no returns
A
Retailer 3
-
HK$1,985 HKD
$253 USD
View
A
Retailer 4
-
HK$2,119 HKD
$270 USD
View
A
Retailer 5
-
HK$2,119 HKD
$270 USD
View
A
Retailer 6
-
HK$2,966 HKD
$378 USD
View
B+
Retailer 7
-
HK$3,625 HKD
$462 USD
View
B+
Retailer 8
-
HK$3,640 HKD
ZAR 7,495 ZAR
View
B+
Retailer 9
-
HK$3,934 HKD
£395 GBP
View
B+
Retailer 10
-
HK$3,978 HKD
$507 USD
View
B+
Retailer 11
-
HK$5,177 HKD
A$1,015 AUD
View
B
Retailer 12
-
HK$6,811 HKD
$868 USD
View
B
Retailer 13
-
HK$6,834 HKD
$871 USD
View
B
Retailer 14
-
HK$7,226 HKD
$921 USD
View
B
Retailer 15
-
HK$8,540 HKD
£857 GBP
View
B
Retailer 16
-
HK$8,866 HKD
$1,130 USD
View
Most Expensive
B
Reve Diamonds
10859158B · Oct 30
HK$9,811 HKD
$1,250 USD
View
16 more retailers have this diamond
Prices start from HK$1,711 HKDSave up to HK$8,100 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 Radiant
HK$1,711 HKD