Round|Lab Grown|GIA

12.05ct E VS2 Round Lab Grown Diamond

EX • E/VS2 • GIA 5231021488

Certificate GIA 5231021488

Diamond specifications and retailer prices

From $11,709 AUD

$8,225 USD

As of October 29, 2026

Save $28,066 AUD (71%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $39,775 AUD at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 12.05ct lab-grown round diamond

This 12.05ct lab-grown round sits in the over five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 5231021488. Listed at 14 retailers as of October 29, 2026, with prices from $11,709 to $39,775, a $28,066 spread on the same certified stone. Brilliant Earth lists it at $39,775. 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

12.05

Carat

Colour

VS2

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34°

Pavilion angle41°

OriginLab Grown

Grading LabGIA

CertificateGIA 5231021488

Dimensions14.80 × 14.78 × 9.00 mm

L/W Ratio1.00

Star length45%

Lower girdle75%

View GIA Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 5231021488

Side View

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 29

Current: $39,775 AUD|Low: $9,809 AUD|High: $73,059 AUD|Avg: $27,252 AUD|-3.5%

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

Retailer 15

Retailer 16

Retailer 17

October 31, 2026

Retailer 12$9,809 AUD

Retailer 14$11,709 AUD

Retailer 3$12,177 AUD

Retailer 17$12,234 AUD

Retailer 15$14,909 AUD

Retailer 10$14,912 AUD

Retailer 13$15,107 AUD

Retailer 4$16,860 AUD

Retailer 2$23,825 AUD

Retailer 7$24,110 AUD

Retailer 16$24,256 AUD

Retailer 9$28,790 AUD

Retailer 11$36,595 AUD

Retailer 5$39,174 AUD

Brilliant Earth$39,775 AUD

Retailer 8$58,227 AUD

Retailer 6$73,059 AUD

27 data points across 17 retailers

14 retailers$11,709 AUD to $39,775 AUD

Retailer 1

$9,809 AUD

$6,890 USD

Price last confirmed 13 days ago

B+

Retailer 2

$11,709 AUD

$8,225 USD

View

B+

Retailer 3

$12,177 AUD

$8,554 USD

View

B+

Retailer 4

$12,234 AUD

$8,594 USD

View

B+

Retailer 5

$14,909 AUD

$10,473 USD

View

B+

Retailer 6

$14,912 AUD

$10,475 USD

View

B+

Retailer 7

$15,107 AUD

$10,612 USD

View

Retailer 8

$16,860 AUD

$11,843 USD

View

Retailer 9

$23,825 AUD

€15,939 EUR

View

Retailer 10

$24,256 AUD

View

Price last confirmed 31 days ago

Retailer 11

$36,595 AUD

$25,706 USD

View

Retailer 12

$39,174 AUD

$27,517 USD

View

Most Expensive

Brilliant Earth

16301247A · Oct 31

$39,775 AUD

$27,940 USD

View

12 more retailers have this diamond

Prices start from $11,709 AUDSave up to $28,066 AUD

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.

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12.05ct Round

$11,709 AUD