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Round|Lab Grown|IGI

3.50ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG790661215

Shape and cutting style on the report: Round brilliant

Certificate IGI LG790661215

Diamond specifications and retailer prices

From $3,339 NZD
$1,882 USD
As of November 1, 2026
Save $13,730 NZD (80%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $17,069 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.5ct lab-grown round diamond

This 3.5ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790661215 or 790661215. Listed at 22 retailers as of October 31, 2026, with prices from $3,339 to $17,069, a $13,730 spread on the same certified stone. Brilliant Earth lists it at $17,069. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790661215
Dimensions9.69 × 9.65 × 6.01 mm
L/W Ratio1.00
Girdle conditionFaceted
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
9.69 mm9.65 mm3.50 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790661215
Side View
Table 58.0%Crown 35.3°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

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: Nov 1
Current: $17,069 NZD|Low: $3,206 NZD|High: $18,311 NZD|Avg: $7,859 NZD|-6.8%
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
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 4$3,339 NZD
Retailer 12$3,634 NZD
Retailer 15$3,738 NZD
Retailer 8$3,873 NZD
Retailer 14$3,873 NZD
Retailer 10$4,163 NZD
Retailer 19$4,170 NZD
Retailer 13$5,262 NZD
Retailer 6$5,660 NZD
Retailer 7$6,072 NZD
Retailer 21$6,361 NZD
Retailer 16$6,798 NZD
Retailer 9$7,260 NZD
Retailer 18$8,995 NZD
Retailer 2$11,064 NZD
Retailer 20$11,072 NZD
Retailer 17$11,095 NZD
Retailer 11$13,569 NZD
Retailer 5$14,365 NZD
Retailer 3$15,738 NZD
Brilliant Earth$17,069 NZD

31 data points across 21 retailers

22 retailers$3,339 NZD to $17,069 NZD

A
Cheapest Retailer
-
$3,339 NZD
$1,882 USD
A
Retailer 2
-
$3,634 NZD
$2,048 USD
View
A
Retailer 3
-
$3,738 NZD
$2,107 USD
View
Final sale: no returns
A
Retailer 4
-
$3,873 NZD
$2,183 USD
View
Retailer 5
-
$3,873 NZD
$2,183 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$4,163 NZD
$2,346 USD
View
A
Retailer 7
-
$4,170 NZD
$2,350 USD
View
A
Retailer 8
-
$5,262 NZD
£2,335 GBP
View
A
Retailer 9
-
$5,660 NZD
$3,190 USD
View
A
Retailer 10
-
$6,072 NZD
$3,422 USD
View
A
Retailer 11
-
$6,361 NZD
$3,585 USD
View
B+
Retailer 12
-
$6,798 NZD
€3,649 EUR
View
B+
Retailer 13
-
$7,260 NZD
$4,092 USD
View
B+
Retailer 14
-
$8,995 NZD
ZAR 81,903 ZAR
View
B+
Retailer 15
-
$10,080 NZD
$5,681 USD
View
B+
Retailer 16
-
$11,064 NZD
£4,910 GBP
View
B+
Retailer 17
-
$11,072 NZD
$6,240 USD
View
B+
Retailer 18
-
$11,095 NZD
$6,253 USD
View
B+
Retailer 19
-
$13,569 NZD
$7,648 USD
View
B
Retailer 20
-
$14,365 NZD
SGD 10,941 SGD
View
B
Retailer 21
-
$15,738 NZD
$8,870 USD
View
Most Expensive
B
Brilliant Earth
21419297A · Oct 31
$17,069 NZD
$9,620 USD
View
21 more retailers have this diamond
Prices start from $3,339 NZDSave up to $13,730 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 Round
$3,339 NZD