CaratHunter
Plans
Radiant|Lab Grown|IGI

8.50ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG570332733

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

Certificate IGI LG570332733

Diamond specifications and retailer prices

From €892 EUR
$996 USD
As of October 30, 2026
Save €3,736 EUR (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €4,628 EUR at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 8.5ct lab-grown radiant diamond

This 8.5ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG570332733 or 570332733. Listed at 14 retailers as of October 28, 2026, with prices from €892 to €4,628, a €3,736 spread on the same certified stone. Rare Carat lists it at €4,628. 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

8.50
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570332733
Dimensions14.51 × 9.94 × 6.62 mm
L/W Ratio1.46
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
14.51 mm9.94 mm8.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570332733
Side View
Table 65.5%Crown 44.3°Girdle: STK-THKPavilion 34.1°Culet: NoneDepth 66.6%

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 30
Current: €4,628 EUR|Low: €892 EUR|High: €9,624 EUR|Avg: €3,085 EUR
Rare Carat
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
November 1, 2026
Retailer 6€892 EUR
Retailer 5€970 EUR
Retailer 12€1,034 EUR
Retailer 13€1,190 EUR
Retailer 15€1,226 EUR
Retailer 2€1,231 EUR
Retailer 14€1,483 EUR
Retailer 9€1,490 EUR
Retailer 10€1,644 EUR
Retailer 4€1,652 EUR
Retailer 16€1,939 EUR
Retailer 11€2,229 EUR
Retailer 3€4,343 EUR
Rare Carat€4,628 EUR
Retailer 8€9,372 EUR
Retailer 7€9,624 EUR

6 data points across 16 retailers

14 retailers€892 EUR to €4,628 EUR

A
Cheapest Retailer
-
€892 EUR
$996 USD
A
Retailer 2
-
€970 EUR
$1,084 USD
View
A
Retailer 3
-
€1,034 EUR
$1,155 USD
View
A
Retailer 4
-
€1,190 EUR
$1,330 USD
View
A
Retailer 5
-
€1,226 EUR
HK$10,700 HKD
View
A
Retailer 6
-
€1,231 EUR
£1,083 GBP
View
A
Retailer 7
-
€1,483 EUR
$1,657 USD
View
A
Retailer 8
-
€1,490 EUR
£1,311 GBP
View
B+
Retailer 9
-
€1,644 EUR
View
B+
Retailer 10
-
€1,652 EUR
$1,846 USD
View
B+
Retailer 11
-
€1,939 EUR
$2,166 USD
View
B+
Retailer 12
-
€2,229 EUR
$2,490 USD
View
B
Retailer 13
-
€4,343 EUR
$4,852 USD
View
Most Expensive
B
Rare Carat
KI7333327KF570 · Oct 28
€4,628 EUR
$5,170 USD
View
13 more retailers have this diamond
Prices start from €892 EURSave up to €3,736 EUR

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
8.50ct Radiant
€892 EUR