Round|Lab Grown|IGI

12.55ct E VS2 Round Lab Grown Diamond

EX • E/VS2 • IGI LG788637051

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788637051

Diamond specifications and retailer prices

From $5,612 AUD

HK$30,800 HKD

As of October 31, 2026

Save $32,440 AUD (85%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: $38,053 AUD at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 12.55ct lab-grown round diamond

This 12.55ct 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 IGI LG788637051 or 788637051. Listed at 17 retailers as of October 31, 2026, with prices from $5,612 to $38,053, a $32,440 spread on the same certified stone. Brilliant Earth lists it at $38,053. 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

12.55

Carat

Colour

VS2

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle32.4°

Pavilion angle40.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG788637051

Dimensions15.09 × 15.16 × 8.91 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG788637051

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31

Current: $38,053 AUD|Low: $4,649 AUD|High: $38,053 AUD|Avg: $10,988 AUD

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

November 1, 2026

Retailer 8$4,649 AUD

Retailer 4$4,725 AUD

Retailer 7$4,957 AUD

Retailer 12$5,612 AUD

Retailer 11$6,196 AUD

Retailer 13$6,278 AUD

Retailer 14$6,548 AUD

Retailer 10$7,314 AUD

Retailer 16$7,608 AUD

Retailer 3$8,440 AUD

Retailer 6$8,890 AUD

Retailer 5$12,294 AUD

Retailer 15$14,415 AUD

Retailer 2$16,428 AUD

Retailer 9$23,993 AUD

Brilliant Earth$38,053 AUD

34 data points across 16 retailers

17 retailers$5,612 AUD to $38,053 AUD

Retailer 1

$4,274 AUD

$3,002 USD

Price last confirmed 21 days ago

Retailer 2

$4,649 AUD

$3,266 USD

View

Price last confirmed 18 days ago

Retailer 3

$4,957 AUD

$3,482 USD

View

Price last confirmed 15 days ago

Retailer 4

$5,612 AUD

HK$30,800 HKD

View

Retailer 5

$6,194 AUD

$4,351 USD

View

Price last confirmed 22 days ago

Retailer 6

$6,196 AUD

$4,352 USD

View

Retailer 7

$6,278 AUD

$4,410 USD

View

Retailer 8

$6,548 AUD

£3,622 GBP

View

Retailer 9

$7,314 AUD

€4,893 EUR

View

Retailer 10

$7,608 AUD

$5,344 USD

View

Retailer 11

$8,440 AUD

£4,668 GBP

View

Retailer 12

$8,890 AUD

$6,245 USD

View

Price last confirmed 14 days ago

B+

Retailer 13

$12,294 AUD

$8,636 USD

View

B+

Retailer 14

$14,415 AUD

$10,126 USD

View

Retailer 15

$16,428 AUD

SGD 15,594 SGD

View

Retailer 16

$23,993 AUD

$16,854 USD

View

Most Expensive

Brilliant Earth

18572424A · Oct 31

$38,053 AUD

$26,730 USD

View

16 more retailers have this diamond

Prices start from $5,612 AUDSave up to $32,440 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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12.55ct Round

$5,612 AUD