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Radiant|Lab Grown|IGI

3.50ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG772686353

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

Certificate IGI LG772686353

Diamond specifications and retailer prices

From $2,555 NZD
$1,440 USD
As of October 30, 2026
Save $12,917 NZD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $15,472 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.5ct lab-grown radiant diamond

This 3.5ct 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 LG772686353 or 772686353. Listed at 19 retailers as of October 30, 2026, with prices from $2,555 to $15,472, a $12,917 spread on the same certified stone. Brilliant Earth lists it at $15,472. 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

3.50
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772686353
Dimensions7.82 × 7.82 × 5.24 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.82 mm7.82 mm3.50 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772686353
Side View
Table 67.0%Crown 43.5°Girdle: MediumPavilion 36.5°Culet: NoneDepth 67.0%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $15,472 NZD|Low: $2,062 NZD|High: $566,756 NZD|Avg: $22,969 NZD|-27.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 12$2,555 NZD
Retailer 16$2,759 NZD
Retailer 7$2,924 NZD
Retailer 6$3,504 NZD
Retailer 2$3,554 NZD
Retailer 14$3,894 NZD
Retailer 10$4,404 NZD
Retailer 15$5,527 NZD
Retailer 11$5,688 NZD
Retailer 13$5,922 NZD
Retailer 4$7,028 NZD
Retailer 17$7,314 NZD
Retailer 18$7,724 NZD
Retailer 3$7,912 NZD
Retailer 5$8,582 NZD
Retailer 8$10,225 NZD
Retailer 9$10,983 NZD
Brilliant Earth$15,472 NZD

29 data points across 18 retailers

19 retailers$2,555 NZD to $15,472 NZD

A
Cheapest Retailer
-
$2,555 NZD
$1,440 USD
Final sale: no returns
A
Retailer 2
-
$2,759 NZD
$1,555 USD
View
A
Retailer 3
-
$2,924 NZD
$1,648 USD
View
A
Retailer 4
-
$3,504 NZD
$1,975 USD
View
A
Retailer 5
-
$3,554 NZD
£1,577 GBP
View
Retailer 6
-
$3,894 NZD
€2,090 EUR
View
Price last confirmed 7 days ago
A
Retailer 7
-
$4,404 NZD
$2,482 USD
View
Retailer 8
-
$5,527 NZD
A$4,792 AUD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$5,688 NZD
ZAR 51,789 ZAR
View
A
Retailer 10
-
$5,922 NZD
£2,628 GBP
View
B+
Retailer 11
-
$6,781 NZD
$3,822 USD
View
B+
Retailer 12
-
$7,028 NZD
$3,961 USD
View
B+
Retailer 13
-
$7,314 NZD
$4,122 USD
View
B+
Retailer 14
-
$7,724 NZD
$4,353 USD
View
B+
Retailer 15
-
$7,912 NZD
£3,511 GBP
View
B+
Retailer 16
-
$8,582 NZD
$4,837 USD
View
Retailer 17
-
$10,225 NZD
A$8,866 AUD
View
Price last confirmed 22 days ago
Retailer 18
-
$10,983 NZD
$6,190 USD
View
Price last confirmed 16 days ago
Most Expensive
B
Brilliant Earth
18433876A · Oct 30
$15,472 NZD
$8,720 USD
View
18 more retailers have this diamond
Prices start from $2,555 NZDSave up to $12,917 NZD

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
3.50ct Radiant
$2,555 NZD