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Princess|Lab Grown|IGI

1.51ct E SI1 Princess Lab Grown Diamond

GD • E/SI1 • IGI LG737515680

Shape and cutting style on the report: Princess cut

Certificate IGI LG737515680

Diamond specifications and retailer prices

From $232 SGD
$181 USD
As of October 27, 2026
Save $1,152 SGD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,384 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.51ct lab-grown princess diamond

This 1.51ct lab-grown princess sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG737515680 or 737515680. Listed at 19 retailers as of October 27, 2026, with prices from $232 to $1,384, a $1,152 spread on the same certified stone. Brilliant Earth lists it at $1,384. 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

1.51
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG737515680
Dimensions6.29 × 6.21 × 4.44 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.29 mm6.21 mm1.51 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG737515680
Side View
Table 70.0%Crown 39.3°Girdle: Slightly ThickPavilion 38.6°Culet: NoneDepth 71.5%

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: $1,384 SGD|Low: $148 SGD|High: $1,436 SGD|Avg: $697 SGD|-3.6%
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
October 29, 2026
Retailer 5$148 SGD
Retailer 11$232 SGD
Retailer 4$256 SGD
Retailer 6$495 SGD
Retailer 13$509 SGD
Retailer 2$516 SGD
Retailer 8$519 SGD
Retailer 10$713 SGD
Retailer 12$715 SGD
Retailer 3$939 SGD
Retailer 9$1,147 SGD
Retailer 7$1,349 SGD
Brilliant Earth$1,384 SGD

43 data points across 13 retailers

19 retailers$232 SGD to $1,384 SGD

A
Cheapest Retailer
-
$232 SGD
$181 USD
B+
Retailer 2
-
$256 SGD
$200 USD
View
Final sale: no returns
B+
Retailer 3
-
$269 SGD
$210 USD
View
B+
Retailer 4
-
$287 SGD
$224 USD
View
B+
Retailer 5
-
$287 SGD
$224 USD
View
B+
Retailer 6
-
$495 SGD
€368 EUR
View
B
Retailer 7
-
$509 SGD
$397 USD
View
B+
Retailer 8
-
$516 SGD
£317 GBP
View
B+
Retailer 9
-
$519 SGD
£319 GBP
View
B+
Retailer 10
-
$573 SGD
$447 USD
View
B
Retailer 11
-
$713 SGD
$556 USD
View
B
Retailer 12
-
$715 SGD
$558 USD
View
B
Retailer 13
-
$923 SGD
$720 USD
View
B
Retailer 14
-
$939 SGD
View
B
Retailer 15
-
$1,147 SGD
$895 USD
View
Retailer 16
-
$1,154 SGD
$900 USD
View
Price last confirmed 8 days ago
Retailer 17
-
$1,167 SGD
$911 USD
View
Price last confirmed 81 days ago
B
Retailer 18
-
$1,349 SGD
£829 GBP
View
Most Expensive
B
Brilliant Earth
18694536A · Oct 29
$1,384 SGD
$1,080 USD
View
18 more retailers have this diamond
Prices start from $232 SGDSave up to $1,152 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 Princess
$232 SGD