Radiant|Lab Grown|IGI

1.00ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG821643185

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

Certificate IGI LG821643185

Diamond specifications and retailer prices

From $295 AUD
$207 USD
As of October 25, 2026
Save $1,083 AUD (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,549 AUD at Queensmith · As of October 25, 2026
View at Queensmith

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821643185 or 821643185. Listed at 21 retailers as of October 25, 2026, with a 368% 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

1.00
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821643185
Dimensions7.04 × 4.93 × 3.36 mm
L/W Ratio1.43
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
7.04 mm4.93 mm1.00 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821643185
Side View
Table 66.0%Crown 40.5°Girdle: MED-STKPavilion 37.7°Culet: NoneDepth 68.2%

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 25
Current: $717 AUD|Low: $228 AUD|High: $1,548 AUD|Avg: $664 AUD|-0.9%
Retailer 1
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
October 26, 2026
Retailer 4$238 AUD
Retailer 2$265 AUD
Retailer 8$275 AUD
Retailer 6$295 AUD
Retailer 9$295 AUD
Retailer 17$395 AUD
Retailer 16$490 AUD
Retailer 14$497 AUD
Retailer 11$505 AUD
Retailer 1$717 AUD
Retailer 10$745 AUD
Retailer 18$774 AUD
Retailer 15$797 AUD
Retailer 13$845 AUD
Retailer 7$945 AUD
Retailer 5$1,224 AUD
Retailer 12$1,378 AUD
Retailer 3$1,548 AUD

39 data points across 18 retailers

21 retailers$295 AUD to $1,378 AUD

Retailer 1
-
$238 AUD
$167 USD
Price last confirmed 8 days ago
Retailer 2
-
$275 AUD
$193 USD
View
Price last confirmed 7 days ago
Retailer 3
-
$295 AUD
$207 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$295 AUD
$207 USD
View
Retailer 5
-
$395 AUD
£218 GBP
View
Price last confirmed 15 days ago
B+
Retailer 6
-
$399 AUD
$280 USD
View
A
Retailer 7
-
$474 AUD
$333 USD
View
Retailer 8
-
$490 AUD
€328 EUR
View
Price last confirmed 8 days ago
Retailer 9
-
$497 AUD
ZAR 5,642 ZAR
View
Price last confirmed 9 days ago
A
Retailer 10
-
$505 AUD
£279 GBP
View
B+
Retailer 11
-
$717 AUD
View
B+
Retailer 12
-
$745 AUD
$523 USD
View
B+
Retailer 13
-
$774 AUD
$544 USD
View
B+
Retailer 14
-
$797 AUD
$560 USD
View
Retailer 15
-
$845 AUD
View
Price last confirmed 7 days ago
B+
Retailer 16
-
$945 AUD
$664 USD
View
B
Retailer 17
-
$1,023 AUD
$719 USD
View
B
Retailer 18
-
$1,224 AUD
$860 USD
View
B
Retailer 19
-
$1,378 AUD
£762 GBP
View
Retailer 20
-
$1,548 AUD
$1,087 USD
View
Price last confirmed 7 days ago
Most Expensive
Queensmith
LG821643185 · Oct 25
$2,549 AUD
£1,410 GBP
View
Price under review
20 more retailers have this diamond
Prices start from $295 AUDSave up to $1,083 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
1.00ct Radiant
$295 AUD