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Radiant|Lab Grown|IGI

1.28ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG621476649

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

Certificate IGI LG621476649

Diamond specifications and retailer prices

From $255 SGD
$199 USD
As of November 2, 2026
Save $2,188 SGD (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,443 SGD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG621476649 or 621476649. Listed at 16 retailers as of November 2, 2026, with prices from $255 to $2,443, a $2,188 spread on the same certified stone. Do Amore Diamonds lists it at $2,443. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621476649
Dimensions7.68 × 5.37 × 3.62 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
7.68 mm5.37 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621476649
Side View
Table 66.0%Crown 41.1°Girdle: MediumPavilion 35.4°Culet: NoneDepth 67.4%

Caratlytics Score

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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: Nov 2
Current: $648 SGD|Low: $203 SGD|High: $1,413 SGD|Avg: $751 SGD|+4.6%
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
November 2, 2026
Retailer 10$255 SGD
Retailer 2$285 SGD
Retailer 14$295 SGD
Retailer 3$316 SGD
Retailer 11$316 SGD
Retailer 13$547 SGD
Retailer 1$648 SGD
Retailer 4$728 SGD
Retailer 8$851 SGD
Retailer 9$1,018 SGD
Retailer 12$1,120 SGD
Retailer 6$1,340 SGD
Retailer 5$1,394 SGD
Retailer 7$1,397 SGD

43 data points across 14 retailers

16 retailers$255 SGD to $2,443 SGD

A
Cheapest Retailer
-
$255 SGD
$199 USD
A
Retailer 2
-
$285 SGD
$223 USD
View
Final sale: no returns
A
Retailer 3
-
$295 SGD
$231 USD
View
A
Retailer 4
-
$316 SGD
$247 USD
View
Retailer 5
-
$316 SGD
$247 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$481 SGD
$376 USD
View
A
Retailer 7
-
$547 SGD
$428 USD
View
B+
Retailer 8
-
$648 SGD
£399 GBP
View
B+
Retailer 9
-
$728 SGD
$569 USD
View
B+
Retailer 10
-
$851 SGD
A$1,024 AUD
View
B
Retailer 11
-
$1,018 SGD
$796 USD
View
B
Retailer 12
-
$1,120 SGD
$876 USD
View
B
Retailer 13
-
$1,340 SGD
$1,048 USD
View
B
Retailer 14
-
$1,397 SGD
£860 GBP
View
B
Retailer 15
-
$1,834 SGD
£1,129 GBP
View
Most Expensive
B
Do Amore Diamonds
27-DBB8C2295 · Nov 2
$2,443 SGD
$1,910 USD
View
15 more retailers have this diamond
Prices start from $255 SGDSave up to $2,188 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
1.28ct Radiant
$255 SGD