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Radiant|Lab Grown|IGI

2.51ct E FL Radiant Lab Grown Diamond

VG • E/FL • IGI LG825659727

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

Certificate IGI LG825659727

Diamond specifications and retailer prices

From $3,435 NZD
$1,936 USD
As of October 30, 2026
Save $12,126 NZD (78%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $15,561 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.51ct lab-grown radiant diamond

This 2.51ct lab-grown radiant sits in the two to three carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG825659727 or 825659727. Listed at 9 retailers as of October 29, 2026, with prices from $3,435 to $15,561, a $12,126 spread on the same certified stone. Brilliant Earth lists it at $15,561. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.4°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825659727
Dimensions9.55 × 6.74 × 4.43 mm
L/W Ratio1.42
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
9.55 mm6.74 mm2.51 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825659727
Side View
Table 66.0%Crown 43.4°Girdle: Slightly ThickPavilion 34.3°Culet: NoneDepth 65.7%

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 30
Current: $15,561 NZD|Low: $3,435 NZD|High: $16,057 NZD|Avg: $9,025 NZD|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 7$3,435 NZD
Retailer 4$4,578 NZD
Retailer 2$5,045 NZD
Retailer 5$5,498 NZD
Retailer 6$9,003 NZD
Retailer 9$9,714 NZD
Retailer 3$10,217 NZD
Retailer 8$11,888 NZD
Brilliant Earth$15,561 NZD

41 data points across 9 retailers

9 retailers$3,435 NZD to $15,561 NZD

A
Cheapest Retailer
-
$3,435 NZD
$1,936 USD
Final sale: no returns
B+
Retailer 2
-
$4,578 NZD
$2,580 USD
View
B+
Retailer 3
-
$5,045 NZD
£2,239 GBP
View
Retailer 4
-
$5,498 NZD
€2,951 EUR
View
Price last confirmed 7 days ago
B
Retailer 5
-
$9,003 NZD
$5,074 USD
View
Retailer 6
-
$9,714 NZD
$5,475 USD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$10,217 NZD
£4,534 GBP
View
B
Retailer 8
-
$11,888 NZD
SGD 9,054 SGD
View
Most Expensive
B
Brilliant Earth
21636050A · Oct 29
$15,561 NZD
$8,770 USD
View
8 more retailers have this diamond
Prices start from $3,435 NZDSave up to $12,126 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
2.51ct Radiant
$3,435 NZD