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Heart|Lab Grown|IGI

1.81ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG678590671

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG678590671

Diamond specifications and retailer prices

From $506 AUD
$356 USD
As of October 27, 2026
Save $2,650 AUD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,157 AUD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.81ct lab-grown heart diamond

This 1.81ct 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 LG678590671 or 678590671. Listed at 12 retailers as of October 27, 2026, with prices from $506 to $3,157, a $2,650 spread on the same certified stone. Brilliant Earth lists it at $3,157. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678590671
Dimensions7.73 × 8.42 × 4.98 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
Top View
7.73 mm8.42 mm1.81 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678590671
Side View
Table 56.0%Crown 35.4°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 59.1%

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 27
Current: $3,157 AUD|Low: $567 AUD|High: $3,697 AUD|Avg: $1,777 AUD|-14.6%
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 29, 2026
Retailer 14$567 AUD
Retailer 15$837 AUD
Retailer 2$975 AUD
Retailer 13$1,007 AUD
Retailer 9$1,010 AUD
Retailer 5$1,278 AUD
Retailer 7$1,371 AUD
Retailer 8$1,457 AUD
Retailer 11$1,840 AUD
Retailer 12$2,018 AUD
Retailer 3$2,356 AUD
Retailer 10$2,465 AUD
Retailer 6$2,767 AUD
Retailer 4$2,893 AUD
Brilliant Earth$3,157 AUD

24 data points across 15 retailers

12 retailers$506 AUD to $3,157 AUD

A
Cheapest Retailer
-
$506 AUD
$356 USD
A
Retailer 2
-
$567 AUD
$399 USD
View
Final sale: no returns
A
Retailer 3
-
$587 AUD
$413 USD
View
A
Retailer 4
-
$837 AUD
HK$4,600 HKD
View
B+
Retailer 5
-
$975 AUD
€653 EUR
View
B+
Retailer 6
-
$1,007 AUD
$708 USD
View
B+
Retailer 7
-
$1,010 AUD
$710 USD
View
B+
Retailer 8
-
$1,457 AUD
View
B
Retailer 9
-
$1,840 AUD
$1,294 USD
View
B
Retailer 10
-
$2,018 AUD
$1,419 USD
View
B
Retailer 11
-
$2,465 AUD
£1,365 GBP
View
Most Expensive
B
Brilliant Earth
15435809A · Oct 28
$3,157 AUD
$2,220 USD
View
11 more retailers have this diamond
Prices start from $506 AUDSave up to $2,650 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
1.81ct Heart
$506 AUD