Princess|Lab Grown|IGI

12.31ct G VS1 Princess Lab Grown Diamond

EX • G/VS1 • IGI LG757529842

Shape and cutting style on the report: Princess cut

Certificate IGI LG757529842

Diamond specifications and retailer prices

From $4,281 USD
CA$5,946 CAD
As of October 30, 2026
Save $7,889 USD (65%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $12,170 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 12.31ct lab-grown princess diamond

This 12.31ct lab-grown princess sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG757529842 or 757529842. Listed at 3 retailers as of October 30, 2026, with prices from $4,281 to $12,170, a $7,889 spread on the same certified stone. Do Amore Diamonds lists it at $12,170. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

12.31
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG757529842
Dimensions12.94 × 12.68 × 8.67 mm
L/W Ratio1.02
Culet sizePointed
Top View
12.94 mm12.68 mm12.31 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG757529842
Side View
Table 69.0%Crown 39°Girdle: MediumPavilion 37.5°Culet: NoneDepth 68.4%

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 30
Current: $12,960 USD|Low: $2,460 USD|High: $21,700 USD|Avg: $7,275 USD|-7.1%
Do Amore Diamonds
Retailer 2
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August 3, 2026
Retailer 8$3,200 USD
Retailer 16$3,229 USD
Retailer 9$3,321 USD
Retailer 11$3,587 USD
Retailer 15$3,675 USD
Retailer 4$3,860 USD
Retailer 10$4,281 USD
Retailer 12$4,572 USD
Retailer 3$5,031 USD
Retailer 6$6,845 USD
Retailer 17$6,874 USD
Retailer 13$7,337 USD
Retailer 14$8,436 USD
Retailer 7$9,302 USD
Retailer 2$11,325 USD
Do Amore Diamonds$12,960 USD
Retailer 5$21,700 USD

54 data points across 17 retailers

3 retailers$4,281 USD to $12,170 USD

A
Cheapest Retailer
-
$4,281 USD
CA$5,946 CAD
B
Retailer 2
-
$11,325 USD
View
Most Expensive
B
Do Amore Diamonds
22-757529842 · Oct 31
$12,170 USD
View
2 more retailers have this diamond
Prices start from $4,281 USDSave up to $7,889 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
12.31ct Princess
$4,281 USD