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Round|Lab Grown|IGI

2.51ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG799648016

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799648016

Diamond specifications and retailer prices

From $1,636 NZD
$922 USD
As of October 29, 2026
Save $10,145 NZD (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $11,781 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round 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 LG799648016 or 799648016. Listed at 23 retailers as of October 29, 2026, with prices from $1,636 to $11,781, a $10,145 spread on the same certified stone. Brilliant Earth lists it at $11,781. 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

2.51
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799648016
Dimensions8.74 × 8.69 × 5.33 mm
L/W Ratio1.01
Girdle conditionFaceted
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
8.74 mm8.69 mm2.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799648016
Side View
Table 59.0%Crown 34.9°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.2%

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 29
Current: $11,781 NZD|Low: $1,636 NZD|High: $17,849 NZD|Avg: $4,473 NZD|-34.0%
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
November 1, 2026
Retailer 8$1,636 NZD
Retailer 4$1,780 NZD
Retailer 15$1,893 NZD
Retailer 11$2,016 NZD
Retailer 18$2,209 NZD
Retailer 9$2,342 NZD
Retailer 2$2,913 NZD
Retailer 7$3,043 NZD
Retailer 12$3,193 NZD
Retailer 19$3,389 NZD
Retailer 13$4,223 NZD
Retailer 16$4,896 NZD
Retailer 3$5,335 NZD
Retailer 14$5,969 NZD
Retailer 17$6,469 NZD
Retailer 10$6,598 NZD
Retailer 5$6,738 NZD
Retailer 6$7,236 NZD
Brilliant Earth$11,781 NZD

23 data points across 19 retailers

23 retailers$1,636 NZD to $11,781 NZD

A
Cheapest Retailer
-
$1,636 NZD
$922 USD
A
Retailer 2
-
$1,780 NZD
$1,003 USD
View
A
Retailer 3
-
$1,893 NZD
$1,067 USD
View
Final sale: no returns
Retailer 4
-
$2,016 NZD
$1,136 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$2,209 NZD
$1,245 USD
View
Retailer 6
-
$2,278 NZD
$1,284 USD
View
Price last confirmed 35 days ago
A
Retailer 7
-
$2,342 NZD
$1,320 USD
View
A
Retailer 8
-
$2,913 NZD
£1,293 GBP
View
A
Retailer 9
-
$3,043 NZD
$1,715 USD
View
A
Retailer 10
-
$3,193 NZD
€1,714 EUR
View
A
Retailer 11
-
$3,389 NZD
$1,910 USD
View
Retailer 12
-
$4,102 NZD
$2,312 USD
View
Price last confirmed 29 days ago
B+
Retailer 13
-
$4,223 NZD
$2,380 USD
View
B+
Retailer 14
-
$4,896 NZD
ZAR 44,580 ZAR
View
B+
Retailer 15
-
$5,335 NZD
$3,007 USD
View
B+
Retailer 16
-
$5,850 NZD
$3,297 USD
View
B+
Retailer 17
-
$5,969 NZD
$3,364 USD
View
B+
Retailer 18
-
$6,469 NZD
£2,871 GBP
View
B+
Retailer 19
-
$6,598 NZD
$3,719 USD
View
B+
Retailer 20
-
$6,738 NZD
SGD 5,132 SGD
View
B+
Retailer 21
-
$7,236 NZD
$4,078 USD
View
Retailer 22
-
$10,575 NZD
$5,960 USD
View
Price last confirmed 18 days ago
Most Expensive
B
Brilliant Earth
21420809A · Oct 31
$11,781 NZD
$6,640 USD
View
22 more retailers have this diamond
Prices start from $1,636 NZDSave up to $10,145 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 Round
$1,636 NZD