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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 $310 AUD
$218 USD
As of October 27, 2026
Save $1,469 AUD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,780 AUD at Reve Diamonds · As of October 28, 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 $310 to $1,780, a $1,469 spread on the same certified stone. Reve Diamonds lists it at $1,780. 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

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $714 AUD|Low: $333 AUD|High: $1,780 AUD|Avg: $977 AUD|+9.1%
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 29, 2026
Retailer 4$347 AUD
Retailer 12$538 AUD
Retailer 11$658 AUD
Retailer 6$660 AUD
Retailer 1$714 AUD
Retailer 2$722 AUD
Retailer 7$939 AUD
Retailer 10$1,236 AUD
Retailer 8$1,240 AUD
Retailer 3$1,311 AUD
Retailer 5$1,549 AUD
Retailer 9$1,608 AUD
Reve Diamonds$1,780 AUD

43 data points across 13 retailers

17 retailers$310 AUD to $1,780 AUD

A
Cheapest Retailer
-
$310 AUD
$218 USD
A
Retailer 2
-
$347 AUD
$244 USD
View
Final sale: no returns
A
Retailer 3
-
$360 AUD
$253 USD
View
A
Retailer 4
-
$384 AUD
$270 USD
View
A
Retailer 5
-
$384 AUD
$270 USD
View
A
Retailer 6
-
$538 AUD
$378 USD
View
B+
Retailer 7
-
$658 AUD
$462 USD
View
B+
Retailer 8
-
$660 AUD
ZAR 7,495 ZAR
View
B+
Retailer 9
-
$714 AUD
£395 GBP
View
B+
Retailer 10
-
$722 AUD
$507 USD
View
B+
Retailer 11
-
$939 AUD
View
B
Retailer 12
-
$1,236 AUD
$868 USD
View
B
Retailer 13
-
$1,240 AUD
$871 USD
View
B
Retailer 14
-
$1,311 AUD
$921 USD
View
B
Retailer 15
-
$1,549 AUD
£857 GBP
View
B
Retailer 16
-
$1,608 AUD
$1,130 USD
View
Most Expensive
B
Reve Diamonds
10859158B · Oct 28
$1,780 AUD
$1,250 USD
View
16 more retailers have this diamond
Prices start from $310 AUDSave up to $1,469 AUD

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
$310 AUD