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Radiant|Lab Grown|IGI

1.55ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG620421277

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG620421277

Diamond specifications and retailer prices

From $300 AUD
$211 USD
As of October 27, 2026
Save $1,193 AUD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,493 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG620421277 or 620421277. Listed at 16 retailers as of October 27, 2026, with prices from $300 to $1,493, a $1,193 spread on the same certified stone. MOH London lists it at $1,493. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620421277
Dimensions8.29 × 5.80 × 3.81 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.29 mm5.80 mm1.55 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620421277
Side View
Table 63.0%Crown 40.5°Girdle: MediumPavilion 34.9°Culet: NoneDepth 65.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,493 AUD|Low: $299 AUD|High: $1,564 AUD|Avg: $794 AUD|-3.4%
MOH London
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
November 1, 2026
Retailer 16$300 AUD
Retailer 10$336 AUD
Retailer 13$349 AUD
Retailer 6$386 AUD
Retailer 8$386 AUD
Retailer 12$501 AUD
Retailer 14$640 AUD
Retailer 2$700 AUD
Retailer 15$733 AUD
Retailer 11$737 AUD
Retailer 4$870 AUD
Retailer 9$964 AUD
Retailer 7$1,240 AUD
Retailer 3$1,273 AUD
Retailer 5$1,424 AUD
MOH London$1,493 AUD

27 data points across 16 retailers

16 retailers$300 AUD to $1,493 AUD

A
Cheapest Retailer
-
$300 AUD
$211 USD
A
Retailer 2
-
$336 AUD
$236 USD
View
Final sale: no returns
A
Retailer 3
-
$349 AUD
$245 USD
View
Retailer 4
-
$386 AUD
$271 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$386 AUD
$271 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$501 AUD
$352 USD
View
A
Retailer 7
-
$640 AUD
ZAR 7,263 ZAR
View
A
Retailer 8
-
$700 AUD
€468 EUR
View
A
Retailer 9
-
$733 AUD
$515 USD
View
A
Retailer 10
-
$737 AUD
$518 USD
View
A
Retailer 11
-
$870 AUD
View
A
Retailer 12
-
$964 AUD
$677 USD
View
Retailer 13
-
$1,240 AUD
$871 USD
View
Price last confirmed 7 days ago
B+
Retailer 14
-
$1,273 AUD
$894 USD
View
B+
Retailer 15
-
$1,424 AUD
$1,000 USD
View
Most Expensive
B+
MOH London
LG620421277 · Nov 1
$1,493 AUD
£826 GBP
View
15 more retailers have this diamond
Prices start from $300 AUDSave up to $1,193 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 Radiant
$300 AUD