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Princess|Lab Grown|IGI

3.00ct G SI1 Princess Lab Grown Diamond

GD • G/SI1 • IGI LG512231591

Shape and cutting style on the report: Princess cut

Certificate IGI LG512231591

Diamond specifications and retailer prices

From $556 USD
As of October 30, 2026
Save $3,374 USD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,930 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3ct lab-grown princess diamond

This 3ct lab-grown princess sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG512231591 or 512231591. Listed at 15 retailers as of October 30, 2026, with prices from $556 to $3,930, a $3,374 spread on the same certified stone. Brilliant Earth lists it at $3,930. 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

3.00
Carat
G
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle49.9°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512231591
Dimensions7.72 × 7.50 × 5.71 mm
L/W Ratio1.03
Culet sizePointed
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
7.72 mm7.50 mm3.00 ctG / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG512231591
Side View
Table 73.5%Crown 49.9°Girdle: Slightly ThickPavilion 39.1°Culet: NoneDepth 76.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,930 USD|Low: $531 USD|High: $3,930 USD|Avg: $1,226 USD
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
Retailer 14
November 1, 2026
Retailer 11$556 USD
Retailer 4$622 USD
Retailer 6$622 USD
Retailer 3$689 USD
Retailer 12$689 USD
Retailer 2$790 USD
Retailer 9$825 USD
Retailer 5$964 USD
Retailer 13$1,064 USD
Retailer 7$1,075 USD
Retailer 10$1,778 USD
Retailer 14$1,813 USD
Retailer 8$3,009 USD
Brilliant Earth$3,930 USD

43 data points across 14 retailers

15 retailers$556 USD to $3,930 USD

B+
Cheapest Retailer
-
$556 USD
B+
Retailer 2
-
$622 USD
View
Final sale: no returns
B+
Retailer 3
-
$622 USD
View
Retailer 4
-
$689 USD
View
Price last confirmed 16 days ago
B+
Retailer 5
-
$689 USD
View
B+
Retailer 6
-
$790 USD
£622 GBP
View
B+
Retailer 7
-
$825 USD
View
B+
Retailer 8
-
$964 USD
View
B+
Retailer 9
-
$1,064 USD
View
B+
Retailer 10
-
$1,075 USD
£846 GBP
View
B
Retailer 11
-
$1,778 USD
View
B
Retailer 12
-
$1,813 USD
View
B
Retailer 13
-
$2,099 USD
HK$16,400 HKD
View
B
Retailer 14
-
$3,009 USD
£2,369 GBP
View
Most Expensive
C
Brilliant Earth
17972394A · Oct 31
$3,930 USD
View
14 more retailers have this diamond
Prices start from $556 USDSave up to $3,374 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.

B+
3.00ct Princess
$556 USD