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 $454 SGD
£279 GBP
As of October 26, 2026
Save $784 SGD (63%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,289 SGD 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 26, 2026, with a 173% 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

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 26
Current: $644 SGD|Low: $205 SGD|High: $1,390 SGD|Avg: $597 SGD|-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$213 SGD
Retailer 2$238 SGD
Retailer 8$247 SGD
Retailer 6$265 SGD
Retailer 9$265 SGD
Retailer 17$355 SGD
Retailer 16$440 SGD
Retailer 14$446 SGD
Retailer 11$454 SGD
Retailer 1$644 SGD
Retailer 10$669 SGD
Retailer 18$695 SGD
Retailer 15$716 SGD
Retailer 13$759 SGD
Retailer 7$849 SGD
Retailer 5$1,099 SGD
Retailer 12$1,237 SGD
Retailer 3$1,390 SGD

38 data points across 18 retailers

21 retailers$454 SGD to $1,237 SGD

Retailer 1
-
$213 SGD
$167 USD
Price last confirmed 9 days ago
Retailer 2
-
$247 SGD
$193 USD
View
Price last confirmed 8 days ago
Retailer 3
-
$265 SGD
$207 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$265 SGD
$207 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$355 SGD
£218 GBP
View
Price last confirmed 15 days ago
Retailer 6
-
$358 SGD
$280 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$426 SGD
$333 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$440 SGD
€328 EUR
View
Price last confirmed 9 days ago
Retailer 9
-
$446 SGD
ZAR 5,642 ZAR
View
Price last confirmed 9 days ago
A
Retailer 10
-
$454 SGD
£279 GBP
View
B+
Retailer 11
-
$644 SGD
A$775 AUD
View
B+
Retailer 12
-
$669 SGD
$523 USD
View
B+
Retailer 13
-
$695 SGD
$544 USD
View
B+
Retailer 14
-
$716 SGD
$560 USD
View
Retailer 15
-
$759 SGD
A$913 AUD
View
Price last confirmed 8 days ago
Retailer 16
-
$849 SGD
$664 USD
View
Price last confirmed 7 days ago
B
Retailer 17
-
$919 SGD
$719 USD
View
B
Retailer 18
-
$1,099 SGD
$860 USD
View
B
Retailer 19
-
$1,237 SGD
£762 GBP
View
Retailer 20
-
$1,390 SGD
$1,087 USD
View
Price last confirmed 7 days ago
Most Expensive
Queensmith
LG821643185 · Oct 25
$2,289 SGD
£1,410 GBP
View
Price under review
20 more retailers have this diamond
Prices start from $454 SGDSave up to $784 SGD

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
$454 SGD