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Radiant|Lab Grown|IGI

1.28ct E VVS1 Radiant Lab Grown Diamond

EX • E/VVS1 • IGI LG651420471

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

Certificate IGI LG651420471

Diamond specifications and retailer prices

From $304 SGD
$237 USD
As of October 30, 2026
Save $1,529 SGD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,833 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG651420471 or 651420471. Listed at 19 retailers as of October 29, 2026, with prices from $304 to $1,833, a $1,529 spread on the same certified stone. Brilliant Earth lists it at $1,833. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651420471
Dimensions7.67 × 5.33 × 3.61 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.67 mm5.33 mm1.28 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651420471
Side View
Table 65.0%Crown 44.1°Girdle: MediumPavilion 34.4°Culet: NoneDepth 67.7%

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: Oct 30
Current: $1,833 SGD|Low: $304 SGD|High: $1,961 SGD|Avg: $848 SGD|-6.5%
Brilliant Earth
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
October 30, 2026
Retailer 3$304 SGD
Retailer 6$315 SGD
Retailer 7$332 SGD
Retailer 19$337 SGD
Retailer 18$414 SGD
Retailer 4$578 SGD
Retailer 13$578 SGD
Retailer 2$622 SGD
Retailer 17$623 SGD
Retailer 8$747 SGD
Retailer 9$790 SGD
Retailer 14$822 SGD
Retailer 15$1,086 SGD
Retailer 16$1,141 SGD
Retailer 11$1,150 SGD
Retailer 10$1,231 SGD
Retailer 12$1,356 SGD
Retailer 5$1,578 SGD
Brilliant Earth$1,833 SGD

39 data points across 19 retailers

19 retailers$304 SGD to $1,833 SGD

A
Cheapest Retailer
-
$304 SGD
$237 USD
Final sale: no returns
Retailer 2
-
$315 SGD
$246 USD
View
Price last confirmed 32 days ago
Retailer 3
-
$332 SGD
$259 USD
View
Price last confirmed 32 days ago
A
Retailer 4
-
$337 SGD
$263 USD
View
Retailer 5
-
$337 SGD
$263 USD
View
Price last confirmed 18 days ago
Retailer 6
-
$414 SGD
£254 GBP
View
Price last confirmed 13 days ago
A
Retailer 7
-
$578 SGD
$451 USD
View
A
Retailer 8
-
$578 SGD
ZAR 7,286 ZAR
View
A
Retailer 9
-
$622 SGD
£382 GBP
View
A
Retailer 10
-
$623 SGD
€463 EUR
View
B+
Retailer 11
-
$747 SGD
$583 USD
View
B+
Retailer 12
-
$790 SGD
$616 USD
View
B+
Retailer 13
-
$822 SGD
A$987 AUD
View
B+
Retailer 14
-
$1,086 SGD
$847 USD
View
Retailer 15
-
$1,141 SGD
$890 USD
View
Price last confirmed 9 days ago
B
Retailer 16
-
$1,150 SGD
$897 USD
View
B
Retailer 17
-
$1,356 SGD
£833 GBP
View
B
Retailer 18
-
$1,578 SGD
$1,231 USD
View
Most Expensive
B
Brilliant Earth
12197745A · Oct 29
$1,833 SGD
$1,430 USD
View
18 more retailers have this diamond
Prices start from $304 SGDSave up to $1,529 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
$304 SGD