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Radiant|Lab Grown|IGI

3.25ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG788664667

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

Certificate IGI LG788664667

Diamond specifications and retailer prices

From $2,135 AUD
$1,500 USD
As of October 27, 2026
Save $8,612 AUD (80%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $10,747 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.25ct lab-grown radiant diamond

This 3.25ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788664667 or 788664667. Listed at 26 retailers as of October 27, 2026, with prices from $2,135 to $10,747, a $8,612 spread on the same certified stone. Brilliant Earth lists it at $10,747. 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

3.25
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.2°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788664667
Dimensions10.67 × 6.86 × 4.80 mm
L/W Ratio1.56
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.67 mm6.86 mm3.25 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788664667
Side View
Table 66.0%Crown 46.2°Girdle: STK-THKPavilion 37.6°Culet: NoneDepth 70.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $10,747 AUD|Low: $2,135 AUD|High: $15,430 AUD|Avg: $5,191 AUD|-30.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
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Retailer 11
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Retailer 20
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Retailer 24
October 30, 2026
Retailer 6$2,135 AUD
Retailer 3$2,323 AUD
Retailer 12$2,390 AUD
Retailer 5$2,475 AUD
Retailer 20$2,719 AUD
Retailer 8$2,788 AUD
Retailer 14$2,860 AUD
Retailer 2$3,496 AUD
Retailer 19$3,541 AUD
Retailer 21$3,941 AUD
Retailer 16$3,988 AUD
Retailer 7$4,640 AUD
Retailer 11$4,988 AUD
Retailer 22$5,600 AUD
Retailer 13$5,749 AUD
Retailer 10$5,987 AUD
Retailer 23$6,358 AUD
Retailer 18$7,110 AUD
Retailer 24$7,288 AUD
Retailer 4$7,491 AUD
Retailer 9$7,602 AUD
Retailer 15$8,279 AUD
Retailer 17$8,707 AUD
Brilliant Earth$10,747 AUD

32 data points across 24 retailers

26 retailers$2,135 AUD to $10,747 AUD

A
Cheapest Retailer
-
$2,135 AUD
$1,500 USD
A
Retailer 2
-
$2,323 AUD
$1,632 USD
View
A
Retailer 3
-
$2,390 AUD
$1,679 USD
View
Final sale: no returns
A
Retailer 4
-
$2,475 AUD
$1,739 USD
View
Retailer 5
-
$2,475 AUD
$1,739 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$2,719 AUD
$1,910 USD
View
A
Retailer 7
-
$2,788 AUD
$1,959 USD
View
A
Retailer 8
-
$2,860 AUD
HK$15,700 HKD
View
A
Retailer 9
-
$3,496 AUD
£1,934 GBP
View
A
Retailer 10
-
$3,541 AUD
$2,488 USD
View
A
Retailer 11
-
$3,941 AUD
€2,637 EUR
View
A
Retailer 12
-
$3,988 AUD
$2,802 USD
View
A
Retailer 13
-
$4,640 AUD
$3,260 USD
View
A
Retailer 14
-
$4,988 AUD
$3,504 USD
View
Retailer 15
-
$5,600 AUD
View
Price last confirmed 7 days ago
B+
Retailer 16
-
$5,749 AUD
ZAR 65,254 ZAR
View
B+
Retailer 17
-
$5,987 AUD
£3,312 GBP
View
B+
Retailer 18
-
$6,358 AUD
$4,467 USD
View
B+
Retailer 19
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$6,673 AUD
$4,688 USD
View
B+
Retailer 20
-
$7,110 AUD
£3,933 GBP
View
B+
Retailer 21
-
$7,288 AUD
$5,120 USD
View
Retailer 22
-
$7,491 AUD
View
Price last confirmed 21 days ago
B+
Retailer 23
-
$7,602 AUD
$5,341 USD
View
B+
Retailer 24
-
$8,279 AUD
SGD 7,860 SGD
View
B
Retailer 25
-
$8,707 AUD
$6,117 USD
View
Most Expensive
B
Brilliant Earth
18549401A · Oct 29
$10,747 AUD
$7,550 USD
View
25 more retailers have this diamond
Prices start from $2,135 AUDSave up to $8,612 AUD

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
3.25ct Radiant
$2,135 AUD