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Radiant|Lab Grown|IGI

1.72ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG627408379

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

Certificate IGI LG627408379

Diamond specifications and retailer prices

From $261 AUD
$183 USD
As of October 27, 2026
Save $2,250 AUD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,511 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.72ct lab-grown radiant diamond

This 1.72ct 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 LG627408379 or 627408379. Listed at 10 retailers as of October 27, 2026, with prices from $261 to $2,511, a $2,250 spread on the same certified stone. Do Amore Diamonds lists it at $2,511. 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

1.72
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627408379
Dimensions8.67 × 5.83 × 3.93 mm
L/W Ratio1.49
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
8.67 mm5.83 mm1.72 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627408379
Side View
Table 66.0%Crown 44.4°Girdle: MediumPavilion 35.5°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: $2,511 AUD|Low: $208 AUD|High: $2,597 AUD|Avg: $1,160 AUD|-3.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 6$261 AUD
Retailer 3$303 AUD
Retailer 10$304 AUD
Retailer 5$569 AUD
Retailer 4$1,100 AUD
Retailer 8$1,140 AUD
Retailer 7$1,149 AUD
Retailer 2$1,680 AUD
Retailer 9$1,812 AUD
Do Amore Diamonds$2,511 AUD

23 data points across 10 retailers

10 retailers$261 AUD to $2,511 AUD

A
Cheapest Retailer
-
$261 AUD
$183 USD
A
Retailer 2
-
$303 AUD
$212 USD
View
A
Retailer 3
-
$304 AUD
$213 USD
View
Final sale: no returns
B+
Retailer 4
-
$569 AUD
$399 USD
View
Retailer 5
-
$1,100 AUD
$771 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$1,140 AUD
$799 USD
View
B+
Retailer 7
-
$1,149 AUD
$805 USD
View
B
Retailer 8
-
$1,680 AUD
£927 GBP
View
B
Retailer 9
-
$1,812 AUD
$1,270 USD
View
Most Expensive
B
Do Amore Diamonds
27-9FA26D7BD · Oct 29
$2,511 AUD
$1,760 USD
View
9 more retailers have this diamond
Prices start from $261 AUDSave up to $2,250 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
1.72ct Radiant
$261 AUD