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Heart|Lab Grown|IGI

1.51ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG840612257

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840612257

Diamond specifications and retailer prices

From $319 AUD
$224 USD
As of October 23, 2026
Save $1,489 AUD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,107 AUD at Brilliant Earth · As of October 14, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840612257 or 840612257. Listed at 22 retailers as of October 23, 2026, with a 467% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840612257
Dimensions7.20 × 7.75 × 4.79 mm
L/W Ratio1.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.20 mm7.75 mm1.51 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840612257
Side View
Table 65.0%Crown 37.5°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.8%

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 23
Current: $2,107 AUD|Low: $319 AUD|High: $2,107 AUD|Avg: $965 AUD
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
Retailer 20
Retailer 21
Retailer 22
October 29, 2026
Retailer 3$319 AUD
Retailer 8$357 AUD
Retailer 19$370 AUD
Retailer 22$396 AUD
Retailer 11$437 AUD
Retailer 16$464 AUD
Retailer 2$643 AUD
Retailer 20$669 AUD
Retailer 5$673 AUD
Retailer 7$727 AUD
Retailer 17$733 AUD
Retailer 12$756 AUD
Retailer 13$923 AUD
Retailer 21$1,271 AUD
Retailer 4$1,275 AUD
Retailer 14$1,283 AUD
Retailer 9$1,346 AUD
Retailer 18$1,587 AUD
Retailer 15$1,601 AUD
Retailer 6$1,608 AUD
Retailer 10$1,808 AUD
Brilliant Earth$2,107 AUD

22 data points across 22 retailers

22 retailers$319 AUD to $1,808 AUD

A
Cheapest Retailer
-
$319 AUD
$224 USD
A
Retailer 2
-
$357 AUD
$251 USD
View
Final sale: no returns
A
Retailer 3
-
$370 AUD
$260 USD
View
A
Retailer 4
-
$396 AUD
$278 USD
View
A
Retailer 5
-
$437 AUD
HK$2,400 HKD
View
A
Retailer 6
-
$464 AUD
£256 GBP
View
A
Retailer 7
-
$643 AUD
€430 EUR
View
A
Retailer 8
-
$669 AUD
ZAR 7,590 ZAR
View
A
Retailer 9
-
$673 AUD
$473 USD
View
A
Retailer 10
-
$727 AUD
$511 USD
View
A
Retailer 11
-
$733 AUD
£405 GBP
View
B+
Retailer 12
-
$756 AUD
$531 USD
View
B+
Retailer 13
-
$923 AUD
View
B+
Retailer 14
-
$1,271 AUD
$893 USD
View
B
Retailer 15
-
$1,275 AUD
$896 USD
View
B
Retailer 16
-
$1,283 AUD
SGD 1,218 SGD
View
B
Retailer 17
-
$1,346 AUD
$946 USD
View
B
Retailer 18
-
$1,587 AUD
£878 GBP
View
B
Retailer 19
-
$1,601 AUD
$1,125 USD
View
B
Retailer 20
-
$1,608 AUD
$1,130 USD
View
B
Retailer 21
-
$1,808 AUD
$1,270 USD
View
Most Expensive
Brilliant Earth
21808394A · Oct 14
$2,107 AUD
$1,480 USD
View
Price last confirmed 15 days ago
21 more retailers have this diamond
Prices start from $319 AUDSave up to $1,489 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
1.51ct Heart
$319 AUD