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Round|Lab Grown|IGI

1.55ct E VVS1 Round Lab Grown Diamond

ID • E/VVS1 • IGI LG788621145

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788621145

Diamond specifications and retailer prices

From $423 AUD
$297 USD
As of October 30, 2026
Save $1,576 AUD (79%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $3,545 AUD at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG788621145 or 788621145. Listed at 27 retailers as of October 30, 2026, with a 373% 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

1.55
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788621145
Dimensions7.48 × 7.44 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.48 mm7.44 mm1.55 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788621145
Side View
Table 59.0%Crown 34.4°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.0%

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: $3,545 AUD|Low: $379 AUD|High: $3,545 AUD|Avg: $1,103 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
October 31, 2026
Retailer 3$379 AUD
Retailer 7$470 AUD
Retailer 9$626 AUD
Retailer 5$629 AUD
Retailer 15$634 AUD
Retailer 13$807 AUD
Retailer 8$846 AUD
Retailer 12$849 AUD
Retailer 2$886 AUD
Retailer 10$897 AUD
Retailer 14$1,092 AUD
Retailer 16$1,192 AUD
Retailer 6$1,713 AUD
Retailer 4$1,751 AUD
Retailer 11$1,891 AUD
Brilliant Earth$3,545 AUD

39 data points across 16 retailers

27 retailers$423 AUD to $1,999 AUD

Retailer 1
-
$379 AUD
$266 USD
Price last confirmed 20 days ago
A
Retailer 2
-
$423 AUD
$297 USD
View
Final sale: no returns
Retailer 3
-
$438 AUD
$308 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$470 AUD
$330 USD
View
Price last confirmed 28 days ago
Retailer 5
-
$470 AUD
$330 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
$470 AUD
$330 USD
View
A
Retailer 7
-
$470 AUD
$330 USD
View
A
Retailer 8
-
$626 AUD
£346 GBP
View
B+
Retailer 9
-
$629 AUD
$442 USD
View
A
Retailer 10
-
$634 AUD
$445 USD
View
A
Retailer 11
-
$807 AUD
ZAR 9,153 ZAR
View
B+
Retailer 12
-
$846 AUD
$594 USD
View
A
Retailer 13
-
$849 AUD
€568 EUR
View
B+
Retailer 14
-
$853 AUD
$599 USD
View
B+
Retailer 15
-
$886 AUD
View
B+
Retailer 16
-
$897 AUD
£496 GBP
View
B+
Retailer 17
-
$1,092 AUD
View
B+
Retailer 18
-
$1,192 AUD
$837 USD
View
B
Retailer 19
-
$1,506 AUD
SGD 1,430 SGD
View
Retailer 20
-
$1,509 AUD
$1,060 USD
View
Price last confirmed 23 days ago
B
Retailer 21
-
$1,582 AUD
$1,111 USD
View
B
Retailer 22
-
$1,713 AUD
$1,203 USD
View
Retailer 23
-
$1,751 AUD
View
Price last confirmed 22 days ago
B
Retailer 24
-
$1,807 AUD
$1,269 USD
View
B+
Retailer 25
-
$1,891 AUD
£1,046 GBP
View
B
Retailer 26
-
$1,999 AUD
$1,404 USD
View
Most Expensive
Brilliant Earth
18980860A · Oct 16
$3,545 AUD
$2,490 USD
View
Price last confirmed 14 days ago
26 more retailers have this diamond
Prices start from $423 AUDSave up to $1,576 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
1.55ct Round
$423 AUD