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Radiant|Lab Grown|IGI

1.83ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG637451313

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

Certificate IGI LG637451313

Diamond specifications and retailer prices

From $275 AUD
$193 USD
As of October 27, 2026
Save $2,364 AUD (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,640 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.83ct lab-grown radiant diamond

This 1.83ct 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 LG637451313 or 637451313. Listed at 11 retailers as of October 27, 2026, with prices from $275 to $2,640, a $2,364 spread on the same certified stone. Do Amore Diamonds lists it at $2,640. 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

1.83
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG637451313
Dimensions8.70 × 6.00 × 4.11 mm
L/W Ratio1.45
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.70 mm6.00 mm1.83 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG637451313
Side View
Table 62.0%Crown 42°Girdle: MediumPavilion 35.2°Culet: NoneDepth 68.5%

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: $2,640 AUD|Low: $275 AUD|High: $2,754 AUD|Avg: $1,115 AUD|-4.1%
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
Retailer 14
October 29, 2026
Retailer 10$275 AUD
Retailer 8$320 AUD
Retailer 3$321 AUD
Retailer 7$486 AUD
Retailer 12$595 AUD
Retailer 4$742 AUD
Retailer 5$1,062 AUD
Retailer 9$1,102 AUD
Retailer 13$1,184 AUD
Retailer 11$1,213 AUD
Retailer 2$1,519 AUD
Retailer 6$1,644 AUD
Retailer 14$1,926 AUD
Do Amore Diamonds$2,640 AUD

26 data points across 14 retailers

11 retailers$275 AUD to $2,640 AUD

A
Cheapest Retailer
-
$275 AUD
$193 USD
A
Retailer 2
-
$320 AUD
$224 USD
View
A
Retailer 3
-
$321 AUD
$225 USD
View
Final sale: no returns
A
Retailer 4
-
$486 AUD
£268 GBP
View
B+
Retailer 5
-
$595 AUD
$417 USD
View
Retailer 6
-
$1,102 AUD
$772 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$1,184 AUD
$830 USD
View
B+
Retailer 8
-
$1,213 AUD
$850 USD
View
B+
Retailer 9
-
$1,519 AUD
£838 GBP
View
B
Retailer 10
-
$1,926 AUD
$1,350 USD
View
Most Expensive
B
Do Amore Diamonds
27-710EB9608 · Oct 29
$2,640 AUD
$1,850 USD
View
10 more retailers have this diamond
Prices start from $275 AUDSave up to $2,364 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
1.83ct Radiant
$275 AUD