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Round|Lab Grown|IGI

1.50ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG788681343

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788681343

Diamond specifications and retailer prices

From $277 SGD
$216 USD
As of October 27, 2026
Save $838 SGD (75%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,444 SGD at MOH London · As of October 19, 2026
View at MOH London

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG788681343 or 788681343. Listed at 18 retailers as of October 27, 2026, with a 303% 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

1.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788681343
Dimensions7.32 × 7.25 × 4.60 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
7.32 mm7.25 mm1.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788681343
Side View
Table 55.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.0%

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 27
Current: $1,444 SGD|Low: $277 SGD|High: $1,538 SGD|Avg: $727 SGD|+9.4%
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
October 29, 2026
Retailer 13$277 SGD
Retailer 12$345 SGD
Retailer 2$499 SGD
Retailer 9$532 SGD
Retailer 4$537 SGD
Retailer 11$550 SGD
Retailer 10$555 SGD
Retailer 5$637 SGD
Retailer 3$698 SGD
Retailer 14$790 SGD
Retailer 7$936 SGD
Retailer 8$991 SGD
Retailer 6$1,115 SGD
MOH London$1,444 SGD

42 data points across 14 retailers

18 retailers$277 SGD to $1,115 SGD

Retailer 1
-
$263 SGD
$205 USD
Price last confirmed 20 days ago
A
Retailer 2
-
$277 SGD
$216 USD
View
Final sale: no returns
Retailer 3
-
$304 SGD
$237 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$326 SGD
$254 USD
View
Price last confirmed 28 days ago
A
Retailer 5
-
$345 SGD
HK$2,100 HKD
View
A
Retailer 6
-
$499 SGD
€371 EUR
View
A
Retailer 7
-
$532 SGD
£327 GBP
View
B+
Retailer 8
-
$537 SGD
$419 USD
View
A
Retailer 9
-
$550 SGD
$429 USD
View
A
Retailer 10
-
$555 SGD
£341 GBP
View
A
Retailer 11
-
$637 SGD
$497 USD
View
B+
Retailer 12
-
$698 SGD
A$838 AUD
View
B+
Retailer 13
-
$790 SGD
$616 USD
View
B+
Retailer 14
-
$936 SGD
$730 USD
View
B+
Retailer 15
-
$991 SGD
View
Retailer 16
-
$1,046 SGD
$816 USD
View
Price last confirmed 22 days ago
B
Retailer 17
-
$1,115 SGD
$870 USD
View
Most Expensive
MOH London
LG788681343 · Oct 19
$1,444 SGD
£887 GBP
View
Price last confirmed 11 days ago
17 more retailers have this diamond
Prices start from $277 SGDSave up to $838 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
1.50ct Round
$277 SGD