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Radiant|Lab Grown|IGI

1.28ct D VVS1 Radiant Lab Grown Diamond

ID • D/VVS1 • IGI LG841629550

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

Certificate IGI LG841629550

Diamond specifications and retailer prices

From $242 SGD
As of November 4, 2026
Save $1,162 SGD (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,285 SGD at Helzberg Diamonds · As of October 13, 2026
View at Helzberg 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 D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG841629550 or 841629550. Listed at 21 retailers as of November 2, 2026, with a 481% 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

1.28
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.2°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841629550
Dimensions7.75 × 5.13 × 3.56 mm
L/W Ratio1.51
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.75 mm5.13 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841629550
Side View
Table 66.0%Crown 46.2°Girdle: STK-THKPavilion 33.8°Culet: NoneDepth 69.4%

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 4
Current: $341 SGD|Low: $242 SGD|High: $1,439 SGD|Avg: $708 SGD|-3.6%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 4, 2026
Retailer 6$242 SGD
Retailer 17$271 SGD
Retailer 16$281 SGD
Retailer 18$300 SGD
Retailer 10$304 SGD
Retailer 1$341 SGD
Retailer 14$406 SGD
Retailer 4$495 SGD
Retailer 8$520 SGD
Retailer 15$539 SGD
Retailer 9$716 SGD
Retailer 5$731 SGD
Retailer 11$811 SGD
Retailer 12$965 SGD
Retailer 3$969 SGD
Retailer 7$980 SGD
Retailer 20$1,008 SGD
Retailer 19$1,033 SGD
Retailer 13$1,374 SGD
Retailer 2$1,403 SGD

18 data points across 20 retailers

21 retailers$242 SGD to $1,403 SGD

A
Cheapest Retailer
-
$242 SGD
A
Retailer 2
-
$271 SGD
View
Final sale: no returns
A
Retailer 3
-
$281 SGD
View
A
Retailer 4
-
$300 SGD
View
Retailer 5
-
$304 SGD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$341 SGD
View
B+
Retailer 7
-
$406 SGD
View
A
Retailer 8
-
$495 SGD
View
A
Retailer 9
-
$520 SGD
View
A
Retailer 10
-
$539 SGD
View
A
Retailer 11
-
$716 SGD
View
A
Retailer 12
-
$731 SGD
View
B+
Retailer 13
-
$811 SGD
View
B+
Retailer 14
-
$965 SGD
View
B+
Retailer 15
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$969 SGD
View
B+
Retailer 16
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$980 SGD
View
B+
Retailer 17
-
$1,008 SGD
View
B+
Retailer 18
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$1,033 SGD
View
Retailer 19
-
$1,374 SGD
View
Price last confirmed 17 days ago
B+
Retailer 20
-
$1,403 SGD
View
Most Expensive
Helzberg Diamonds
ZXZOKHMIPLLG · Oct 13
$2,285 SGD
$1,788 USD
View
Price last confirmed 22 days ago
20 more retailers have this diamond
Prices start from $242 SGDSave up to $1,162 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
$242 SGD