Round|Lab Grown|IGI

1.28ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG811647116

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811647116

Diamond specifications and retailer prices

From $520 SGD
As of November 4, 2026
Save $254 SGD (33%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,431 SGD at MOH London · As of October 19, 2026
View at MOH London

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round 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 LG811647116 or 811647116. Listed at 20 retailers as of October 30, 2026, with a 49% 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
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811647116
Dimensions7.02 × 6.98 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.02 mm6.98 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811647116
Side View
Table 58.0%Crown 34.3°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 60.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $1,431 SGD|Low: $245 SGD|High: $1,439 SGD|Avg: $679 SGD|+3.6%
MOH London
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
October 30, 2026
Retailer 3$245 SGD
Retailer 7$304 SGD
Retailer 15$304 SGD
Retailer 9$520 SGD
Retailer 10$522 SGD
Retailer 6$533 SGD
Retailer 2$552 SGD
Retailer 13$554 SGD
Retailer 14$658 SGD
Retailer 12$742 SGD
Retailer 16$774 SGD
Retailer 11$876 SGD
Retailer 8$920 SGD
Retailer 4$978 SGD
Retailer 5$1,047 SGD
MOH London$1,431 SGD

36 data points across 16 retailers

20 retailers$520 SGD to $774 SGD

Retailer 1
-
$229 SGD
Price last confirmed 35 days ago
Retailer 2
-
$245 SGD
View
Price last confirmed 7 days ago
Retailer 3
-
$276 SGD
View
Price last confirmed 30 days ago
Retailer 4
-
$295 SGD
View
Price last confirmed 34 days ago
Retailer 5
-
$304 SGD
View
Price last confirmed 11 days ago
Retailer 6
-
$304 SGD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$520 SGD
View
Retailer 8
-
$522 SGD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$533 SGD
View
A
Retailer 10
-
$552 SGD
View
A
Retailer 11
-
$554 SGD
View
Retailer 12
-
$658 SGD
View
Price last confirmed 15 days ago
Retailer 13
-
$742 SGD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$774 SGD
View
Retailer 15
-
$876 SGD
View
Price last confirmed 9 days ago
Retailer 16
-
$920 SGD
View
Price last confirmed 7 days ago
Retailer 17
-
$949 SGD
View
Price last confirmed 36 days ago
Retailer 18
-
$978 SGD
View
Price last confirmed 9 days ago
Retailer 19
-
$1,047 SGD
View
Price last confirmed 7 days ago
Most Expensive
MOH London
LG811647116 · Oct 19
$1,431 SGD
£882 GBP
View
Price last confirmed 17 days ago
19 more retailers have this diamond
Prices start from $520 SGDSave up to $254 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 Round
$520 SGD