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Radiant|Lab Grown|IGI

2.50ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG836618001

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

Certificate IGI LG836618001

Diamond specifications and retailer prices

From $2,028 NZD
£900 GBP
As of October 30, 2026
Save $8,760 NZD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,788 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.5ct lab-grown radiant diamond

This 2.5ct lab-grown radiant sits in the two to three carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836618001 or 836618001. Listed at 20 retailers as of October 30, 2026, with prices from $2,028 to $10,788, a $8,760 spread on the same certified stone. Brilliant Earth lists it at $10,788. 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

2.50
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.6°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836618001
Dimensions9.18 × 6.73 × 4.63 mm
L/W Ratio1.36
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
9.18 mm6.73 mm2.50 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836618001
Side View
Table 64.0%Crown 44.6°Girdle: MED-STKPavilion 35.6°Culet: NoneDepth 68.8%

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: $10,788 NZD|Low: $1,875 NZD|High: $16,013 NZD|Avg: $6,367 NZD|-30.3%
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 2$2,028 NZD
Retailer 16$2,097 NZD
Retailer 3$2,307 NZD
Retailer 11$3,083 NZD
Retailer 17$3,197 NZD
Retailer 15$3,521 NZD
Retailer 18$4,308 NZD
Retailer 4$4,581 NZD
Retailer 13$5,110 NZD
Retailer 5$5,516 NZD
Retailer 7$6,118 NZD
Retailer 12$6,816 NZD
Retailer 6$6,963 NZD
Retailer 9$7,430 NZD
Retailer 14$8,013 NZD
Retailer 8$9,205 NZD
Retailer 10$9,599 NZD
Brilliant Earth$10,788 NZD

27 data points across 18 retailers

20 retailers$2,028 NZD to $10,788 NZD

A
Cheapest Retailer
-
$2,028 NZD
£900 GBP
A
Retailer 2
-
$2,097 NZD
$1,182 USD
View
Final sale: no returns
A
Retailer 3
-
$2,307 NZD
$1,300 USD
View
Retailer 4
-
$2,465 NZD
$1,389 USD
View
Price last confirmed 28 days ago
Retailer 5
-
$2,977 NZD
$1,678 USD
View
Price last confirmed 27 days ago
A
Retailer 6
-
$3,083 NZD
£1,368 GBP
View
A
Retailer 7
-
$3,197 NZD
$1,802 USD
View
Retailer 8
-
$3,521 NZD
€1,890 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
-
$4,308 NZD
$2,428 USD
View
A
Retailer 10
-
$4,581 NZD
$2,582 USD
View
B+
Retailer 11
-
$5,110 NZD
ZAR 46,524 ZAR
View
B+
Retailer 12
-
$5,516 NZD
£2,448 GBP
View
B+
Retailer 13
-
$6,118 NZD
$3,448 USD
View
B+
Retailer 14
-
$6,816 NZD
£3,025 GBP
View
B+
Retailer 15
-
$6,963 NZD
$3,924 USD
View
B+
Retailer 16
-
$7,430 NZD
SGD 5,659 SGD
View
B+
Retailer 17
-
$8,013 NZD
$4,516 USD
View
B
Retailer 18
-
$9,205 NZD
$5,188 USD
View
Retailer 19
-
$9,599 NZD
$5,410 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21603031A · Oct 30
$10,788 NZD
$6,080 USD
View
19 more retailers have this diamond
Prices start from $2,028 NZDSave up to $8,760 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
2.50ct Radiant
$2,028 NZD