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Radiant|Lab Grown|IGI

1.85ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG611373065

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

Certificate IGI LG611373065

Diamond specifications and retailer prices

From $278 AUD
$195 USD
As of October 27, 2026
Save $2,390 AUD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,668 AUD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.85ct lab-grown radiant diamond

This 1.85ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG611373065 or 611373065. Listed at 10 retailers as of October 27, 2026, with prices from $278 to $2,668, a $2,390 spread on the same certified stone. Do Amore Diamonds lists it at $2,668. 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

1.85
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.6°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG611373065
Dimensions8.71 × 5.94 × 4.05 mm
L/W Ratio1.47
Culet sizeNone
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
8.71 mm5.94 mm1.85 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG611373065
Side View
Table 63.0%Crown 44.6°Girdle: MediumPavilion 34.9°Culet: NoneDepth 68.2%

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: $2,668 AUD|Low: $277 AUD|High: $2,768 AUD|Avg: $1,205 AUD|-3.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 8$278 AUD
Retailer 6$322 AUD
Retailer 13$324 AUD
Retailer 10$602 AUD
Retailer 3$750 AUD
Retailer 4$1,071 AUD
Retailer 7$1,113 AUD
Retailer 11$1,192 AUD
Retailer 9$1,224 AUD
Retailer 2$1,533 AUD
Retailer 5$1,645 AUD
Retailer 12$1,941 AUD
Do Amore Diamonds$2,668 AUD

18 data points across 13 retailers

10 retailers$278 AUD to $2,668 AUD

A
Cheapest Retailer
-
$278 AUD
$195 USD
A
Retailer 2
-
$322 AUD
$226 USD
View
A
Retailer 3
-
$324 AUD
$227 USD
View
Final sale: no returns
B+
Retailer 4
-
$602 AUD
$422 USD
View
Retailer 5
-
$1,113 AUD
$780 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,192 AUD
$836 USD
View
B+
Retailer 7
-
$1,224 AUD
$858 USD
View
B+
Retailer 8
-
$1,533 AUD
£846 GBP
View
B
Retailer 9
-
$1,941 AUD
$1,360 USD
View
Most Expensive
B
Do Amore Diamonds
27-39B38ADB0 · Oct 30
$2,668 AUD
$1,870 USD
View
9 more retailers have this diamond
Prices start from $278 AUDSave up to $2,390 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
1.85ct Radiant
$278 AUD