Radiant|Lab Grown|IGI

1.72ct F IF Radiant Lab Grown Diamond

GD • F/IF • IGI LG729503380

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

Certificate IGI LG729503380

Diamond specifications and retailer prices

From $296 USD
As of October 30, 2026
Save $2,424 USD (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,720 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG729503380 or 729503380. Listed at 23 retailers as of October 30, 2026, with prices from $296 to $2,720, a $2,424 spread on the same certified stone. Brilliant Earth lists it at $2,720. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.72
Carat
F
Color
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729503380
Dimensions8.52 × 5.81 × 3.93 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.52 mm5.81 mm1.72 ctF / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729503380
Side View
Table 65.0%Crown 41.2°Girdle: MediumPavilion 37.2°Culet: NoneDepth 67.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $2,720 USD|Low: $284 USD|High: $3,880 USD|Avg: $986 USD|-29.9%
Brilliant Earth
Retailer 2
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Retailer 21
October 31, 2026
Retailer 4$296 USD
Retailer 14$332 USD
Retailer 12$344 USD
Retailer 5$367 USD
Retailer 10$367 USD
Retailer 18$525 USD
Retailer 2$588 USD
Retailer 7$602 USD
Retailer 17$631 USD
Retailer 9$635 USD
Retailer 13$651 USD
Retailer 16$854 USD
Retailer 20$946 USD
Retailer 6$1,181 USD
Retailer 11$1,229 USD
Retailer 8$1,267 USD
Retailer 21$1,311 USD
Retailer 15$1,481 USD
Retailer 3$1,565 USD
Retailer 19$2,595 USD
Brilliant Earth$2,720 USD

36 data points across 21 retailers

23 retailers$296 USD to $2,720 USD

A
Cheapest Retailer
-
$296 USD
A
Retailer 2
-
$332 USD
View
Final sale: no returns
A
Retailer 3
-
$344 USD
View
Retailer 4
-
$367 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$367 USD
View
A
Retailer 6
-
$525 USD
View
A
Retailer 7
-
$588 USD
€560 EUR
View
B+
Retailer 8
-
$602 USD
View
A
Retailer 9
-
$631 USD
ZAR 10,199 ZAR
View
B+
Retailer 10
-
$635 USD
View
A
Retailer 11
-
$651 USD
£513 GBP
View
B+
Retailer 12
-
$854 USD
A$1,314 AUD
View
B+
Retailer 13
-
$946 USD
View
B
Retailer 14
-
$1,181 USD
View
B
Retailer 15
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$1,198 USD
SGD 1,619 SGD
View
B
Retailer 16
-
$1,229 USD
View
B+
Retailer 17
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$1,267 USD
View
B+
Retailer 18
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$1,290 USD
View
B+
Retailer 19
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$1,311 USD
View
B
Retailer 20
-
$1,481 USD
£1,166 GBP
View
B
Retailer 21
-
$1,565 USD
View
Retailer 22
-
$2,595 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
21417112A · Oct 31
$2,720 USD
View
22 more retailers have this diamond
Prices start from $296 USDSave up to $2,424 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
$296 USD