Radiant|Lab Grown|IGI

1.33ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG623421838

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

Certificate IGI LG623421838

Diamond specifications and retailer prices

From $317 USD
As of October 30, 2026
Save $3,283 USD (91%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,600 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.33ct lab-grown radiant diamond

This 1.33ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG623421838 or 623421838. Listed at 24 retailers as of October 29, 2026, with prices from $317 to $3,600, a $3,283 spread on the same certified stone. Brilliant Earth lists it at $3,600. 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

1.33
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.7°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623421838
Dimensions7.40 × 5.52 × 3.86 mm
L/W Ratio1.34
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
7.40 mm5.52 mm1.33 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623421838
Side View
Table 58.0%Crown 44.7°Girdle: MED-STKPavilion 35.5°Culet: NoneDepth 69.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $3,600 USD|Low: $304 USD|High: $3,600 USD|Avg: $988 USD|+0.3%
Brilliant Earth
Retailer 2
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Retailer 5
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Retailer 11
Retailer 12
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Retailer 19
October 30, 2026
Retailer 4$317 USD
Retailer 5$393 USD
Retailer 8$393 USD
Retailer 2$406 USD
Retailer 7$530 USD
Retailer 16$550 USD
Retailer 17$612 USD
Retailer 9$644 USD
Retailer 15$676 USD
Retailer 12$701 USD
Retailer 10$932 USD
Retailer 14$959 USD
Retailer 19$969 USD
Retailer 6$1,264 USD
Retailer 3$1,359 USD
Retailer 11$1,567 USD
Retailer 13$1,585 USD
Retailer 18$1,875 USD
Brilliant Earth$3,600 USD

38 data points across 19 retailers

24 retailers$317 USD to $3,600 USD

A
Cheapest Retailer
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$317 USD
A
Retailer 2
-
$354 USD
View
Final sale: no returns
A
Retailer 3
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$368 USD
View
A
Retailer 4
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$393 USD
View
A
Retailer 5
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$393 USD
View
A
Retailer 6
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$406 USD
£320 GBP
View
A
Retailer 7
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$530 USD
View
A
Retailer 8
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$550 USD
View
Retailer 9
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$612 USD
€583 EUR
View
Price last confirmed 7 days ago
A
Retailer 10
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$644 USD
View
A
Retailer 11
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$676 USD
ZAR 10,916 ZAR
View
A
Retailer 12
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$701 USD
£552 GBP
View
B+
Retailer 13
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$932 USD
View
B+
Retailer 14
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$959 USD
A$1,476 AUD
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B+
Retailer 15
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$969 USD
View
B
Retailer 16
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$1,060 USD
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B
Retailer 17
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$1,264 USD
View
B
Retailer 18
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$1,310 USD
View
Retailer 19
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$1,359 USD
A$2,090 AUD
View
Price last confirmed 22 days ago
B
Retailer 20
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$1,398 USD
£1,101 GBP
View
B
Retailer 21
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$1,567 USD
View
B
Retailer 22
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$1,585 USD
£1,248 GBP
View
Retailer 23
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$1,875 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
9481163A · Oct 29
$3,600 USD
View
23 more retailers have this diamond
Prices start from $317 USDSave up to $3,283 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
1.33ct Radiant
$317 USD