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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 $1,765 AUD
$1,240 USD
As of October 30, 2026
Save $7,574 AUD (81%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,339 AUD 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 $1,765 to $9,339, a $7,574 spread on the same certified stone. Brilliant Earth lists it at $9,339. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $9,339 AUD|Low: $1,765 AUD|High: $12,485 AUD|Avg: $5,525 AUD|-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$1,765 AUD
Retailer 18$1,920 AUD
Retailer 3$1,999 AUD
Retailer 15$2,049 AUD
Retailer 14$2,292 AUD
Retailer 5$2,367 AUD
Retailer 2$2,885 AUD
Retailer 11$2,987 AUD
Retailer 8$3,244 AUD
Retailer 9$3,573 AUD
Retailer 17$3,828 AUD
Retailer 16$3,839 AUD
Retailer 12$5,284 AUD
Retailer 7$5,619 AUD
Retailer 13$6,615 AUD
Retailer 10$7,046 AUD
Retailer 19$7,183 AUD
Retailer 4$7,639 AUD
Brilliant Earth$9,339 AUD

34 data points across 19 retailers

19 retailers$1,765 AUD to $9,339 AUD

A
Cheapest Retailer
-
$1,765 AUD
$1,240 USD
A
Retailer 2
-
$1,920 AUD
$1,349 USD
View
A
Retailer 3
-
$1,999 AUD
$1,404 USD
View
Final sale: no returns
A
Retailer 4
-
$2,049 AUD
$1,439 USD
View
A
Retailer 5
-
$2,292 AUD
$1,610 USD
View
A
Retailer 6
-
$2,367 AUD
$1,663 USD
View
A
Retailer 7
-
$2,885 AUD
£1,596 GBP
View
Retailer 8
-
$2,987 AUD
$2,098 USD
View
Price last confirmed 17 days ago
A
Retailer 9
-
$3,244 AUD
$2,279 USD
View
A
Retailer 10
-
$3,573 AUD
$2,510 USD
View
B+
Retailer 11
-
$3,828 AUD
$2,689 USD
View
B+
Retailer 12
-
$3,839 AUD
$2,697 USD
View
B+
Retailer 13
-
$5,284 AUD
ZAR 59,967 ZAR
View
B+
Retailer 14
-
$5,619 AUD
$3,947 USD
View
B+
Retailer 15
-
$6,615 AUD
£3,659 GBP
View
B+
Retailer 16
-
$7,046 AUD
SGD 6,688 SGD
View
B+
Retailer 17
-
$7,183 AUD
$5,046 USD
View
B+
Retailer 18
-
$7,639 AUD
$5,366 USD
View
Most Expensive
B
Brilliant Earth
21434106A · Oct 30
$9,339 AUD
$6,560 USD
View
18 more retailers have this diamond
Prices start from $1,765 AUDSave up to $7,574 AUD

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
$1,765 AUD