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Radiant|Lab Grown|IGI

1.72ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG547255810

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

Certificate IGI LG547255810

Diamond specifications and retailer prices

From $263 AUD
$185 USD
As of October 27, 2026
Save $2,268 AUD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,531 AUD at Do Amore Diamonds · As of October 28, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG547255810 or 547255810. Listed at 10 retailers as of October 27, 2026, with prices from $263 to $2,531, a $2,268 spread on the same certified stone. Do Amore Diamonds lists it at $2,531. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.7°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG547255810
Dimensions8.29 × 5.90 × 4.05 mm
L/W Ratio1.41
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
8.29 mm5.90 mm1.72 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG547255810
Side View
Table 63.5%Crown 43.7°Girdle: MED-STKPavilion 35.7°Culet: NoneDepth 68.6%

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: $2,531 AUD|Low: $259 AUD|High: $2,659 AUD|Avg: $1,089 AUD|-4.8%
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
October 18, 2026
Retailer 9$263 AUD
Retailer 13$303 AUD
Retailer 8$306 AUD
Retailer 7$574 AUD
Retailer 5$627 AUD
Retailer 4$782 AUD
Retailer 3$825 AUD
Retailer 6$1,109 AUD
Retailer 11$1,146 AUD
Retailer 10$1,160 AUD
Retailer 2$1,696 AUD
Retailer 12$1,948 AUD
Do Amore Diamonds$2,531 AUD

17 data points across 13 retailers

10 retailers$263 AUD to $2,531 AUD

A
Cheapest Retailer
-
$263 AUD
$185 USD
A
Retailer 2
-
$303 AUD
$213 USD
View
Final sale: no returns
A
Retailer 3
-
$306 AUD
$215 USD
View
B+
Retailer 4
-
$574 AUD
$404 USD
View
B+
Retailer 5
-
$1,109 AUD
$780 USD
View
B+
Retailer 6
-
$1,146 AUD
$806 USD
View
B+
Retailer 7
-
$1,160 AUD
$816 USD
View
B
Retailer 8
-
$1,696 AUD
£939 GBP
View
Price last confirmed 8 days ago
B
Retailer 9
-
$1,948 AUD
$1,370 USD
View
Most Expensive
B
Do Amore Diamonds
27-2FE244DD5 · Oct 28
$2,531 AUD
$1,780 USD
View
9 more retailers have this diamond
Prices start from $263 AUDSave up to $2,268 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
$263 AUD