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Heart|Lab Grown|IGI

2.57ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG825661268

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825661268

Diamond specifications and retailer prices

From $1,338 AUD
$940 USD
As of October 30, 2026
Save $7,873 AUD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $9,211 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.57ct lab-grown heart diamond

This 2.57ct lab-grown heart sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825661268 or 825661268. Listed at 18 retailers as of October 30, 2026, with prices from $1,338 to $9,211, a $7,873 spread on the same certified stone. Brilliant Earth lists it at $9,211. 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

2.57
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825661268
Dimensions8.33 × 9.33 × 5.56 mm
L/W Ratio1.12
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
8.33 mm9.33 mm2.57 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825661268
Side View
Table 56.0%Crown 35.1°Girdle: Slightly ThickPavilion 38.7°Culet: NoneDepth 59.6%

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 30
Current: $9,211 AUD|Low: $1,498 AUD|High: $11,574 AUD|Avg: $4,149 AUD|-20.4%
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
October 30, 2026
Retailer 3$1,498 AUD
Retailer 2$1,574 AUD
Retailer 15$1,801 AUD
Retailer 8$2,386 AUD
Retailer 6$2,486 AUD
Retailer 12$3,155 AUD
Retailer 11$3,680 AUD
Retailer 4$3,841 AUD
Retailer 9$4,003 AUD
Retailer 13$4,610 AUD
Retailer 7$5,207 AUD
Retailer 10$5,290 AUD
Retailer 5$5,398 AUD
Retailer 14$5,588 AUD
Brilliant Earth$9,211 AUD

31 data points across 15 retailers

18 retailers$1,338 AUD to $9,211 AUD

A
Cheapest Retailer
-
$1,338 AUD
$940 USD
A
Retailer 2
-
$1,498 AUD
$1,052 USD
View
Final sale: no returns
A
Retailer 3
-
$1,552 AUD
$1,090 USD
View
Retailer 4
-
$1,552 AUD
$1,090 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$1,574 AUD
£871 GBP
View
A
Retailer 6
-
$1,801 AUD
$1,265 USD
View
A
Retailer 7
-
$2,386 AUD
£1,320 GBP
View
A
Retailer 8
-
$2,486 AUD
$1,746 USD
View
A
Retailer 9
-
$3,155 AUD
$2,216 USD
View
Retailer 10
-
$3,680 AUD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$3,841 AUD
$2,698 USD
View
B+
Retailer 12
-
$4,003 AUD
ZAR 45,426 ZAR
View
B+
Retailer 13
-
$4,610 AUD
$3,238 USD
View
B+
Retailer 14
-
$5,207 AUD
SGD 4,943 SGD
View
B+
Retailer 15
-
$5,290 AUD
£2,926 GBP
View
B+
Retailer 16
-
$5,398 AUD
$3,792 USD
View
B+
Retailer 17
-
$5,588 AUD
$3,925 USD
View
Most Expensive
B
Brilliant Earth
21603034A · Oct 30
$9,211 AUD
$6,470 USD
View
17 more retailers have this diamond
Prices start from $1,338 AUDSave up to $7,873 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
2.57ct Heart
$1,338 AUD