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Round|Lab Grown|IGI

0.51ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG843690275

Shape and cutting style on the report: Round brilliant

Certificate IGI LG843690275

Diamond specifications and retailer prices

From $174 AUD
As of November 5, 2026
Save $505 AUD (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,550 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843690275 or 843690275. Listed at 14 retailers as of November 4, 2026, with a 290% 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

0.51
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843690275
Dimensions5.10 × 5.07 × 3.16 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.10 mm5.07 mm0.51 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843690275
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.1%

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: Nov 5
Current: $1,550 AUD|Low: $198 AUD|High: $1,559 AUD|Avg: $509 AUD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 11$198 AUD
Retailer 5$214 AUD
Retailer 4$254 AUD
Retailer 9$336 AUD
Retailer 7$345 AUD
Retailer 2$361 AUD
Retailer 6$418 AUD
Retailer 8$473 AUD
Retailer 12$536 AUD
Retailer 10$666 AUD
Retailer 3$679 AUD
MOH London$1,550 AUD

20 data points across 12 retailers

14 retailers$174 AUD to $679 AUD

A
Cheapest Retailer
-
$174 AUD
Retailer 2
-
$198 AUD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$214 AUD
View
A
Retailer 4
-
$254 AUD
View
B+
Retailer 5
-
$336 AUD
View
B+
Retailer 6
-
$345 AUD
View
B+
Retailer 7
-
$361 AUD
View
B+
Retailer 8
-
$418 AUD
View
B+
Retailer 9
-
$473 AUD
View
B
Retailer 10
-
$536 AUD
View
B
Retailer 11
-
$597 AUD
View
B
Retailer 12
-
$666 AUD
View
B
Retailer 13
-
$679 AUD
View
Most Expensive
MOH London
LG843690275 · Nov 2
$1,550 AUD
£856 GBP
View
Price under review
13 more retailers have this diamond
Prices start from $174 AUDSave up to $505 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
0.51ct Round
$174 AUD