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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 $218 USD
As of October 27, 2026
Save $1,032 USD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,250 USD 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 $218 to $1,250, a $1,032 spread on the same certified stone. Reve Diamonds lists it at $1,250. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $501 USD|Low: $234 USD|High: $1,250 USD|Avg: $687 USD|+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$244 USD
Retailer 12$378 USD
Retailer 11$462 USD
Retailer 6$464 USD
Retailer 1$501 USD
Retailer 2$507 USD
Retailer 7$660 USD
Retailer 10$868 USD
Retailer 8$871 USD
Retailer 3$921 USD
Retailer 5$1,088 USD
Retailer 9$1,130 USD
Reve Diamonds$1,250 USD

43 data points across 13 retailers

17 retailers$218 USD to $1,250 USD

A
Cheapest Retailer
-
$218 USD
A
Retailer 2
-
$244 USD
View
Final sale: no returns
A
Retailer 3
-
$253 USD
View
A
Retailer 4
-
$270 USD
View
A
Retailer 5
-
$270 USD
View
A
Retailer 6
-
$378 USD
View
B+
Retailer 7
-
$462 USD
View
B+
Retailer 8
-
$464 USD
ZAR 7,495 ZAR
View
B+
Retailer 9
-
$501 USD
£395 GBP
View
B+
Retailer 10
-
$507 USD
View
B+
Retailer 11
-
$660 USD
A$1,015 AUD
View
B
Retailer 12
-
$868 USD
View
B
Retailer 13
-
$871 USD
View
B
Retailer 14
-
$921 USD
View
B
Retailer 15
-
$1,088 USD
£857 GBP
View
B
Retailer 16
-
$1,130 USD
View
Most Expensive
B
Reve Diamonds
10859158B · Oct 28
$1,250 USD
View
16 more retailers have this diamond
Prices start from $218 USDSave up to $1,032 USD

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
$218 USD