Radiant|Lab Grown|IGI

4.31ct D IF Radiant Lab Grown Diamond

- • D/IF • IGI LG754595488

Certificate IGI LG754595488

Diamond specifications and retailer prices

From $4,084 USD
Save $17,186 USD (81%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $21,270 USD at Brilliant Earth
View at Brilliant Earth

About this 4.31ct lab-grown radiant diamond

This 4.31ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG754595488 or 754595488. Listed at 26 retailers, with prices from $4,084 to $21,270 at Brilliant Earth, a $17,186 spread on the same certified stone. 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

4.31
Carat
D
Color
IF
Clarity
-
Cut

Specifications

Cut-
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754595488
Dimensions8.21 × 8.21 × 11.39 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.21 mm8.21 mm4.31 ctD / IF
OriginLab Grown
Cut-
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754595488
Side View
Table 64.0%Crown 41.9°Girdle: Slightly ThickPavilion 34.5°Culet: NoneDepth 66.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $21,270 USD|Low: $3,358 USD|High: $21,320 USD|Avg: $9,807 USD|-0.2%
Brilliant Earth
Retailer 2
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Retailer 21
October 1, 2026
Retailer 4$4,502 USD
Retailer 3$4,790 USD
Retailer 19$5,400 USD
Retailer 9$5,826 USD
Retailer 21$5,914 USD
Retailer 8$6,298 USD
Retailer 13$6,391 USD
Retailer 7$6,645 USD
Retailer 16$6,668 USD
Retailer 5$7,564 USD
Retailer 12$9,862 USD
Retailer 15$9,899 USD
Retailer 18$10,269 USD
Retailer 17$10,331 USD
Retailer 14$12,706 USD
Retailer 10$13,159 USD
Retailer 2$15,387 USD
Retailer 6$16,830 USD
Retailer 11$17,129 USD
Retailer 20$18,389 USD
Brilliant Earth$21,270 USD

39 data points across 21 retailers

26 retailers$4,084 USD to $21,270 USD

A
Cheapest Retailer
-
$4,084 USD
A
Retailer 2
-
$4,280 USD
View
A
Retailer 3
-
$4,502 USD
View
A
Retailer 4
-
$4,672 USD
View
A
Retailer 5
-
$4,790 USD
View
B+
Retailer 6
-
$5,400 USD
View
A
Retailer 7
-
$5,826 USD
View
A
Retailer 8
-
$5,914 USD
HK$46,200 HKD
View
A
Retailer 9
-
$5,920 USD
View
A
Retailer 10
-
$6,255 USD
£4,925 GBP
View
Price last confirmed 21 days ago
A
Retailer 11
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$6,298 USD
View
A
Retailer 12
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$6,406 USD
£5,044 GBP
View
A
Retailer 13
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$6,645 USD
£5,232 GBP
View
A
Retailer 14
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$6,668 USD
View
A
Retailer 15
-
$7,564 USD
€7,204 EUR
View
B+
Retailer 16
-
$9,862 USD
View
B+
Retailer 17
-
$9,899 USD
ZAR 159,923 ZAR
View
B+
Retailer 18
-
$10,269 USD
£8,086 GBP
View
B+
Retailer 19
-
$10,331 USD
A$15,894 AUD
View
B+
Retailer 20
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$12,706 USD
View
B
Retailer 21
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$13,159 USD
View
B
Retailer 22
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$15,387 USD
A$23,672 AUD
View
B
Retailer 23
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$16,830 USD
View
B
Retailer 24
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$17,129 USD
SGD 23,147 SGD
View
B
Retailer 25
-
$18,764 USD
View
Most Expensive
B
Brilliant Earth
18146393A · Oct 1
$21,270 USD
View
25 more retailers have this diamond
Prices start from $4,084 USDSave up to $17,186 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.

A
4.31ct Radiant
$4,084 USD