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Radiant|Lab Grown|IGI

1.74ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG618475819

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

Certificate IGI LG618475819

Diamond specifications and retailer prices

From $264 AUD
$185 USD
As of October 27, 2026
Save $2,262 AUD (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,526 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.74ct lab-grown radiant diamond

This 1.74ct 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 LG618475819 or 618475819. Listed at 9 retailers as of October 27, 2026, with prices from $264 to $2,526, a $2,262 spread on the same certified stone. Do Amore Diamonds lists it at $2,526. 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

1.74
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618475819
Dimensions8.57 × 5.82 × 3.92 mm
L/W Ratio1.47
Culet sizePointed
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
8.57 mm5.82 mm1.74 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618475819
Side View
Table 67.0%Crown 42.4°Girdle: MediumPavilion 33.6°Culet: NoneDepth 67.4%

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: $2,526 AUD|Low: $211 AUD|High: $2,625 AUD|Avg: $1,158 AUD|-3.8%
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 25, 2026
Retailer 10$264 AUD
Retailer 7$305 AUD
Retailer 13$307 AUD
Retailer 12$576 AUD
Retailer 5$617 AUD
Retailer 6$779 AUD
Retailer 8$1,110 AUD
Retailer 3$1,148 AUD
Retailer 14$1,150 AUD
Retailer 11$1,160 AUD
Retailer 9$1,420 AUD
Retailer 2$1,691 AUD
Do Amore Diamonds$2,526 AUD
Retailer 4$2,540 AUD

19 data points across 14 retailers

9 retailers$264 AUD to $2,526 AUD

A
Cheapest Retailer
-
$264 AUD
$185 USD
A
Retailer 2
-
$305 AUD
$214 USD
View
A
Retailer 3
-
$307 AUD
$215 USD
View
Final sale: no returns
B+
Retailer 4
-
$576 AUD
$404 USD
View
Retailer 5
-
$1,110 AUD
$778 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$1,160 AUD
$813 USD
View
B+
Retailer 7
-
$1,420 AUD
$995 USD
View
Retailer 8
-
$1,691 AUD
£933 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
Do Amore Diamonds
27-565C12CE8 · Oct 29
$2,526 AUD
$1,770 USD
View
8 more retailers have this diamond
Prices start from $264 AUDSave up to $2,262 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
1.74ct Radiant
$264 AUD