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Heart|Lab Grown|IGI

2.51ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG825665156

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825665156

Diamond specifications and retailer prices

From $2,200 NZD
$1,240 USD
As of October 30, 2026
Save $9,439 NZD (81%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,639 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.51ct lab-grown heart diamond

This 2.51ct lab-grown heart 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 LG825665156 or 825665156. Listed at 19 retailers as of October 30, 2026, with prices from $2,200 to $11,639, a $9,439 spread on the same certified stone. Brilliant Earth lists it at $11,639. 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 angle36.3°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825665156
Dimensions9.30 × 8.35 × 5.42 mm
L/W Ratio1.11
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
9.30 mm8.35 mm2.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825665156
Side View
Table 60.0%Crown 36.3°Girdle: Slightly ThickPavilion 38.4°Culet: NoneDepth 58.3%

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: $11,639 NZD|Low: $2,200 NZD|High: $15,561 NZD|Avg: $6,886 NZD|-25.2%
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
October 30, 2026
Retailer 6$2,200 NZD
Retailer 18$2,394 NZD
Retailer 3$2,491 NZD
Retailer 15$2,553 NZD
Retailer 14$2,857 NZD
Retailer 5$2,951 NZD
Retailer 2$3,596 NZD
Retailer 11$3,722 NZD
Retailer 8$4,044 NZD
Retailer 9$4,453 NZD
Retailer 17$4,771 NZD
Retailer 16$4,785 NZD
Retailer 12$6,586 NZD
Retailer 7$7,003 NZD
Retailer 13$8,245 NZD
Retailer 10$8,781 NZD
Retailer 19$8,953 NZD
Retailer 4$9,521 NZD
Brilliant Earth$11,639 NZD

34 data points across 19 retailers

19 retailers$2,200 NZD to $11,639 NZD

A
Cheapest Retailer
-
$2,200 NZD
$1,240 USD
A
Retailer 2
-
$2,394 NZD
$1,349 USD
View
A
Retailer 3
-
$2,491 NZD
$1,404 USD
View
Final sale: no returns
A
Retailer 4
-
$2,553 NZD
$1,439 USD
View
A
Retailer 5
-
$2,857 NZD
$1,610 USD
View
A
Retailer 6
-
$2,951 NZD
$1,663 USD
View
A
Retailer 7
-
$3,596 NZD
£1,596 GBP
View
Retailer 8
-
$3,722 NZD
$2,098 USD
View
Price last confirmed 17 days ago
A
Retailer 9
-
$4,044 NZD
$2,279 USD
View
A
Retailer 10
-
$4,453 NZD
$2,510 USD
View
B+
Retailer 11
-
$4,771 NZD
$2,689 USD
View
B+
Retailer 12
-
$4,785 NZD
$2,697 USD
View
B+
Retailer 13
-
$6,586 NZD
ZAR 59,967 ZAR
View
B+
Retailer 14
-
$7,003 NZD
$3,947 USD
View
B+
Retailer 15
-
$8,245 NZD
£3,659 GBP
View
B+
Retailer 16
-
$8,781 NZD
SGD 6,688 SGD
View
B+
Retailer 17
-
$8,953 NZD
$5,046 USD
View
B+
Retailer 18
-
$9,521 NZD
$5,366 USD
View
Most Expensive
B
Brilliant Earth
21434106A · Oct 30
$11,639 NZD
$6,560 USD
View
18 more retailers have this diamond
Prices start from $2,200 NZDSave up to $9,439 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 Heart
$2,200 NZD