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Radiant|Lab Grown|IGI

3.28ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG737502926

Certificate IGI LG737502926

Diamond specifications and retailer prices

From $1,550 USD
Save $11,480 USD (88%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $13,030 USD at Brilliant Earth
View at Brilliant Earth

About this 3.28ct lab-grown radiant diamond

This 3.28ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG737502926 or 737502926. Listed at 27 retailers, with prices from $1,550 to $13,030 at Brilliant Earth, a $11,480 spread on the same certified stone. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.28
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG737502926
Dimensions11.02 × 7.40 × 4.77 mm
L/W Ratio1.49
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
11.02 mm7.40 mm3.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG737502926
Side View
Table 63.0%Crown 40.6°Girdle: MediumPavilion 33°Culet: NoneDepth 64.5%

Caratlytics Score

How it works →
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: $13,030 USD|Low: $1,239 USD|High: $13,040 USD|Avg: $4,608 USD|-0.1%
Brilliant Earth
Retailer 2
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Retailer 22
October 1, 2026
Retailer 13$1,736 USD
Retailer 18$1,860 USD
Retailer 7$2,014 USD
Retailer 14$2,182 USD
Retailer 17$2,189 USD
Retailer 19$2,607 USD
Retailer 5$2,793 USD
Retailer 20$3,263 USD
Retailer 8$3,452 USD
Retailer 3$4,064 USD
Retailer 22$4,099 USD
Retailer 10$4,343 USD
Retailer 11$4,690 USD
Retailer 21$5,197 USD
Retailer 9$5,236 USD
Retailer 15$5,502 USD
Retailer 2$5,886 USD
Retailer 4$5,930 USD
Retailer 6$6,346 USD
Retailer 12$6,788 USD
Retailer 16$7,293 USD
Brilliant Earth$13,030 USD

40 data points across 22 retailers

27 retailers$1,550 USD to $13,030 USD

A
Cheapest Retailer
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$1,550 USD
A
Retailer 2
-
$1,686 USD
View
A
Retailer 3
-
$1,736 USD
View
A
Retailer 4
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$1,773 USD
View
A
Retailer 5
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$1,860 USD
View
A
Retailer 6
-
$2,014 USD
View
A
Retailer 7
-
$2,182 USD
View
A
Retailer 8
-
$2,189 USD
HK$17,100 HKD
View
A
Retailer 9
-
$2,553 USD
£2,010 GBP
View
Price last confirmed 21 days ago
A
Retailer 10
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$2,613 USD
£2,058 GBP
View
A
Retailer 11
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$2,793 USD
€2,660 EUR
View
A
Retailer 12
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$3,263 USD
View
A
Retailer 13
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$3,370 USD
View
A
Retailer 14
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$3,452 USD
View
A
Retailer 15
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$4,064 USD
A$6,253 AUD
View
A
Retailer 16
-
$4,099 USD
ZAR 66,224 ZAR
View
B+
Retailer 17
-
$4,343 USD
£3,420 GBP
View
B+
Retailer 18
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$4,690 USD
View
B+
Retailer 19
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$5,197 USD
£4,092 GBP
View
B+
Retailer 20
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$5,236 USD
View
B+
Retailer 21
-
$5,502 USD
View
B+
Retailer 22
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$5,886 USD
View
B+
Retailer 23
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$5,930 USD
View
B+
Retailer 24
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$6,346 USD
SGD 8,575 SGD
View
B+
Retailer 25
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$6,927 USD
View
B+
Retailer 26
-
$7,293 USD
A$11,220 AUD
View
Most Expensive
B
Brilliant Earth
16121945A · Sep 29
$13,030 USD
View
26 more retailers have this diamond
Prices start from $1,550 USDSave up to $11,480 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
3.28ct Radiant
$1,550 USD