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Round|Lab Grown|IGI

1.51ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG778688204

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778688204

Diamond specifications and retailer prices

From $290 SGD
As of November 6, 2026
Save $962 SGD (77%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,526 SGD at MOH London · As of October 26, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778688204 or 778688204. Listed at 18 retailers as of November 5, 2026, with a 332% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778688204
Dimensions7.29 × 7.34 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.29 mm7.34 mm1.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778688204
Side View
Table 58.0%Crown 35.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.2%

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 6
Current: $1,526 SGD|Low: $253 SGD|High: $1,635 SGD|Avg: $750 SGD|+14.3%
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
Retailer 17
November 6, 2026
Retailer 6$263 SGD
Retailer 14$290 SGD
Retailer 9$305 SGD
Retailer 5$359 SGD
Retailer 2$525 SGD
Retailer 15$558 SGD
Retailer 16$562 SGD
Retailer 11$581 SGD
Retailer 10$589 SGD
Retailer 8$653 SGD
Retailer 17$695 SGD
Retailer 3$984 SGD
Retailer 12$1,040 SGD
Retailer 4$1,046 SGD
Retailer 7$1,049 SGD
Retailer 13$1,252 SGD
MOH London$1,526 SGD

43 data points across 17 retailers

18 retailers$290 SGD to $1,252 SGD

Retailer 1
-
$263 SGD
Price last confirmed 11 days ago
A
Retailer 2
-
$290 SGD
View
Final sale: no returns
Retailer 3
-
$305 SGD
View
Price last confirmed 10 days ago
Retailer 4
-
$326 SGD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$359 SGD
View
A
Retailer 6
-
$525 SGD
View
B+
Retailer 7
-
$558 SGD
View
A
Retailer 8
-
$562 SGD
View
A
Retailer 9
-
$581 SGD
View
A
Retailer 10
-
$589 SGD
View
Retailer 11
-
$653 SGD
View
Price last confirmed 11 days ago
A
Retailer 12
-
$695 SGD
View
Retailer 13
-
$984 SGD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$1,040 SGD
View
B+
Retailer 15
-
$1,046 SGD
View
Retailer 16
-
$1,049 SGD
View
Price last confirmed 13 days ago
B
Retailer 17
-
$1,252 SGD
View
Most Expensive
MOH London
LG778688204 · Oct 26
$1,526 SGD
£941 GBP
View
Price last confirmed 10 days ago
17 more retailers have this diamond
Prices start from $290 SGDSave up to $962 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
1.51ct Round
$290 SGD