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Round|Lab Grown|IGI

2.51ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG807625504

Shape and cutting style on the report: Round brilliant

Certificate IGI LG807625504

Diamond specifications and retailer prices

From $2,663 NZD
$1,501 USD
As of October 29, 2026
Save $15,275 NZD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $17,938 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 LG807625504 or 807625504. Listed at 22 retailers as of October 29, 2026, with prices from $2,663 to $17,938, a $15,275 spread on the same certified stone. Brilliant Earth lists it at $17,938. 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 angle33.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807625504
Dimensions8.73 × 8.81 × 5.31 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
8.73 mm8.81 mm2.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807625504
Side View
Table 59.0%Crown 33.1°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.6%

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: $17,938 NZD|Low: $2,557 NZD|High: $17,938 NZD|Avg: $5,739 NZD
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
November 1, 2026
Retailer 15$2,663 NZD
Retailer 14$2,897 NZD
Retailer 8$2,981 NZD
Retailer 9$3,089 NZD
Retailer 6$3,426 NZD
Retailer 17$3,735 NZD
Retailer 13$4,069 NZD
Retailer 2$4,310 NZD
Retailer 3$4,418 NZD
Retailer 7$4,982 NZD
Retailer 10$5,293 NZD
Retailer 16$5,791 NZD
Retailer 4$7,933 NZD
Retailer 11$7,971 NZD
Retailer 12$8,871 NZD
Retailer 5$10,329 NZD
Brilliant Earth$17,938 NZD

44 data points across 17 retailers

22 retailers$2,663 NZD to $17,938 NZD

A
Cheapest Retailer
-
$2,663 NZD
$1,501 USD
A
Retailer 2
-
$2,897 NZD
$1,633 USD
View
A
Retailer 3
-
$2,981 NZD
$1,680 USD
View
Final sale: no returns
Retailer 4
-
$3,046 NZD
$1,717 USD
View
Price last confirmed 35 days ago
Retailer 5
-
$3,089 NZD
$1,741 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$3,426 NZD
$1,931 USD
View
A
Retailer 7
-
$3,733 NZD
$2,104 USD
View
B+
Retailer 8
-
$3,735 NZD
$2,105 USD
View
B+
Retailer 9
-
$4,069 NZD
A$3,528 AUD
View
B+
Retailer 10
-
$4,310 NZD
£1,913 GBP
View
B+
Retailer 11
-
$4,418 NZD
$2,490 USD
View
B+
Retailer 12
-
$4,982 NZD
$2,808 USD
View
B+
Retailer 13
-
$5,293 NZD
€2,841 EUR
View
B+
Retailer 14
-
$5,791 NZD
$3,264 USD
View
B+
Retailer 15
-
$7,933 NZD
$4,471 USD
View
B+
Retailer 16
-
$7,971 NZD
ZAR 72,578 ZAR
View
B
Retailer 17
-
$8,327 NZD
$4,693 USD
View
B+
Retailer 18
-
$8,871 NZD
£3,937 GBP
View
B
Retailer 19
-
$9,484 NZD
$5,345 USD
View
B
Retailer 20
-
$10,329 NZD
SGD 7,867 SGD
View
B
Retailer 21
-
$10,864 NZD
$6,123 USD
View
Most Expensive
B
Brilliant Earth
20674691A · Oct 31
$17,938 NZD
$10,110 USD
View
21 more retailers have this diamond
Prices start from $2,663 NZDSave up to $15,275 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
$2,663 NZD