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Round|Lab Grown|IGI

5.51ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG750558343

Shape and cutting style on the report: Round brilliant

Certificate IGI LG750558343

Diamond specifications and retailer prices

From $1,021 AUD
$717 USD
As of October 26, 2026
Save $6,667 AUD (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,687 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 5.51ct lab-grown round diamond

This 5.51ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG750558343 or 750558343. Listed at 21 retailers as of October 26, 2026, with prices from $1,021 to $7,687, a $6,667 spread on the same certified stone. Brilliant Earth lists it at $7,687. 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

5.51
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750558343
Dimensions11.44 × 11.39 × 6.88 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.44 mm11.39 mm5.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750558343
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.1°Culet: NoneDepth 60.2%

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 26
Current: $7,687 AUD|Low: $1,005 AUD|High: $7,702 AUD|Avg: $2,877 AUD|-0.2%
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
Retailer 20
October 31, 2026
Retailer 5$1,021 AUD
Retailer 4$1,189 AUD
Retailer 11$1,213 AUD
Retailer 12$1,213 AUD
Retailer 17$1,554 AUD
Retailer 7$1,658 AUD
Retailer 13$1,658 AUD
Retailer 19$1,752 AUD
Retailer 14$1,876 AUD
Retailer 18$2,132 AUD
Retailer 16$2,398 AUD
Retailer 9$2,439 AUD
Retailer 15$2,595 AUD
Retailer 3$3,011 AUD
Retailer 20$3,327 AUD
Retailer 2$3,753 AUD
Retailer 6$4,080 AUD
Retailer 8$4,771 AUD
Retailer 10$6,100 AUD
Brilliant Earth$7,687 AUD

35 data points across 20 retailers

21 retailers$1,021 AUD to $7,687 AUD

A
Cheapest Retailer
-
$1,021 AUD
$717 USD
Retailer 2
-
$1,139 AUD
$800 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$1,189 AUD
$835 USD
View
Final sale: no returns
Retailer 4
-
$1,213 AUD
$852 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$1,213 AUD
$852 USD
View
A
Retailer 6
-
$1,554 AUD
£859 GBP
View
B+
Retailer 7
-
$1,658 AUD
$1,165 USD
View
A
Retailer 8
-
$1,658 AUD
$1,165 USD
View
A
Retailer 9
-
$1,752 AUD
$1,231 USD
View
A
Retailer 10
-
$1,876 AUD
£1,038 GBP
View
A
Retailer 11
-
$2,132 AUD
€1,426 EUR
View
B+
Retailer 12
-
$2,398 AUD
View
Retailer 13
-
$2,439 AUD
ZAR 27,673 ZAR
View
Price last confirmed 12 days ago
B+
Retailer 14
-
$2,595 AUD
$1,823 USD
View
B+
Retailer 15
-
$3,011 AUD
$2,115 USD
View
B+
Retailer 16
-
$3,327 AUD
$2,337 USD
View
B+
Retailer 17
-
$3,753 AUD
$2,636 USD
View
B
Retailer 18
-
$4,080 AUD
$2,866 USD
View
B
Retailer 19
-
$4,771 AUD
£2,639 GBP
View
Retailer 20
-
$6,100 AUD
$4,285 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
17473704A · Oct 31
$7,687 AUD
$5,400 USD
View
20 more retailers have this diamond
Prices start from $1,021 AUDSave up to $6,667 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
5.51ct Round
$1,021 AUD