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Radiant|Lab Grown|IGI

1.28ct E VS1 Radiant Lab Grown Diamond

VG • E/VS1 • IGI LG628407192

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

Certificate IGI LG628407192

Diamond specifications and retailer prices

From $247 SGD
$193 USD
As of October 27, 2026
Save $2,137 SGD (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,384 SGD at Do Amore Diamonds · As of October 29, 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG628407192 or 628407192. Listed at 12 retailers as of October 27, 2026, with prices from $247 to $2,384, a $2,137 spread on the same certified stone. Do Amore Diamonds lists it at $2,384. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628407192
Dimensions7.87 × 5.32 × 3.63 mm
L/W Ratio1.48
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
7.87 mm5.32 mm1.28 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628407192
Side View
Table 65.0%Crown 42.8°Girdle: MediumPavilion 35.6°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 27
Current: $2,384 SGD|Low: $236 SGD|High: $2,384 SGD|Avg: $902 SGD
Do Amore Diamonds
Retailer 2
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Retailer 12
Retailer 13
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Retailer 18
October 29, 2026
Retailer 15$247 SGD
Retailer 3$278 SGD
Retailer 12$287 SGD
Retailer 2$427 SGD
Retailer 17$537 SGD
Retailer 4$565 SGD
Retailer 8$578 SGD
Retailer 7$660 SGD
Retailer 9$688 SGD
Retailer 11$830 SGD
Retailer 10$851 SGD
Retailer 13$992 SGD
Retailer 16$1,091 SGD
Retailer 5$1,269 SGD
Retailer 6$1,273 SGD
Retailer 14$1,367 SGD
Retailer 18$1,679 SGD
Do Amore Diamonds$2,384 SGD

39 data points across 18 retailers

12 retailers$247 SGD to $2,384 SGD

A
Cheapest Retailer
-
$247 SGD
$193 USD
A
Retailer 2
-
$278 SGD
$217 USD
View
Final sale: no returns
A
Retailer 3
-
$287 SGD
$224 USD
View
A
Retailer 4
-
$427 SGD
£263 GBP
View
B+
Retailer 5
-
$537 SGD
$419 USD
View
B+
Retailer 6
-
$830 SGD
A$996 AUD
View
B
Retailer 7
-
$992 SGD
$774 USD
View
B
Retailer 8
-
$1,091 SGD
$851 USD
View
B
Retailer 9
-
$1,269 SGD
$990 USD
View
B
Retailer 10
-
$1,367 SGD
£840 GBP
View
B
Retailer 11
-
$1,679 SGD
$1,310 USD
View
Most Expensive
B
Do Amore Diamonds
27-E781DC176 · Oct 29
$2,384 SGD
$1,860 USD
View
11 more retailers have this diamond
Prices start from $247 SGDSave up to $2,137 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
$247 SGD