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Princess|Lab Grown|IGI

1.28ct E VS1 Princess Lab Grown Diamond

ID • E/VS1 • IGI LG633413725

Shape and cutting style on the report: Princess cut

Certificate IGI LG633413725

Diamond specifications and retailer prices

From $237 USD
As of October 27, 2026
Save $1,093 USD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,330 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.28ct lab-grown princess diamond

This 1.28ct lab-grown princess 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 top-tier cut grade and certified by IGI LG633413725 or 633413725. Listed at 21 retailers as of October 27, 2026, with prices from $237 to $1,330, a $1,093 spread on the same certified stone. Brilliant Earth lists it at $1,330. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.8°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG633413725
Dimensions5.92 × 5.86 × 4.23 mm
L/W Ratio1.01
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
5.92 mm5.86 mm1.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG633413725
Side View
Table 69.0%Crown 30.8°Girdle: MediumPavilion 38.7°Culet: NoneDepth 72.2%

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: $1,330 USD|Low: $200 USD|High: $1,330 USD|Avg: $617 USD
Brilliant Earth
Retailer 2
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Retailer 4
Retailer 5
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Retailer 7
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Retailer 11
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Retailer 13
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Retailer 17
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Retailer 19
Retailer 20
Retailer 21
October 29, 2026
Retailer 4$237 USD
Retailer 8$265 USD
Retailer 18$275 USD
Retailer 5$294 USD
Retailer 20$294 USD
Retailer 21$371 USD
Retailer 13$452 USD
Retailer 12$494 USD
Retailer 9$497 USD
Retailer 16$505 USD
Retailer 2$554 USD
Retailer 6$611 USD
Retailer 11$710 USD
Retailer 17$716 USD
Retailer 14$779 USD
Retailer 3$944 USD
Retailer 19$948 USD
Retailer 7$996 USD
Retailer 15$1,184 USD
Retailer 10$1,311 USD
Brilliant Earth$1,330 USD

40 data points across 21 retailers

21 retailers$237 USD to $1,330 USD

A
Cheapest Retailer
-
$237 USD
A
Retailer 2
-
$265 USD
View
Final sale: no returns
A
Retailer 3
-
$275 USD
View
A
Retailer 4
-
$294 USD
View
A
Retailer 5
-
$294 USD
View
A
Retailer 6
-
$371 USD
£292 GBP
View
Price last confirmed 13 days ago
A
Retailer 7
-
$452 USD
€430 EUR
View
A
Retailer 8
-
$494 USD
View
A
Retailer 9
-
$497 USD
View
A
Retailer 10
-
$505 USD
ZAR 8,154 ZAR
View
B+
Retailer 11
-
$554 USD
£436 GBP
View
B+
Retailer 12
-
$611 USD
View
B+
Retailer 13
-
$710 USD
View
B+
Retailer 14
-
$716 USD
A$1,102 AUD
View
B+
Retailer 15
-
$779 USD
View
B
Retailer 16
-
$944 USD
View
B
Retailer 17
-
$948 USD
View
B
Retailer 18
-
$996 USD
View
B
Retailer 19
-
$1,184 USD
£932 GBP
View
B
Retailer 20
-
$1,311 USD
View
Most Expensive
B
Brilliant Earth
10242914A · Oct 28
$1,330 USD
View
20 more retailers have this diamond
Prices start from $237 USDSave up to $1,093 USD

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 Princess
$237 USD