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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 $185 USD
As of October 27, 2026
Save $1,595 USD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,780 USD 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 $185 to $1,780, a $1,595 spread on the same certified stone. Do Amore Diamonds lists it at $1,780. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,780 USD|Low: $182 USD|High: $1,870 USD|Avg: $766 USD|-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$185 USD
Retailer 13$213 USD
Retailer 8$215 USD
Retailer 7$404 USD
Retailer 5$441 USD
Retailer 4$550 USD
Retailer 3$580 USD
Retailer 6$780 USD
Retailer 11$806 USD
Retailer 10$816 USD
Retailer 2$1,193 USD
Retailer 12$1,370 USD
Do Amore Diamonds$1,780 USD

17 data points across 13 retailers

10 retailers$185 USD to $1,780 USD

A
Cheapest Retailer
-
$185 USD
A
Retailer 2
-
$213 USD
View
Final sale: no returns
A
Retailer 3
-
$215 USD
View
B+
Retailer 4
-
$404 USD
View
B+
Retailer 5
-
$780 USD
View
B+
Retailer 6
-
$806 USD
View
B+
Retailer 7
-
$816 USD
View
B
Retailer 8
-
$1,193 USD
£939 GBP
View
Price last confirmed 8 days ago
B
Retailer 9
-
$1,370 USD
View
Most Expensive
B
Do Amore Diamonds
27-2FE244DD5 · Oct 28
$1,780 USD
View
9 more retailers have this diamond
Prices start from $185 USDSave up to $1,595 USD

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
$185 USD