Cushion|Lab Grown|IGI

12.15ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG577377305

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG577377305

Diamond specifications and retailer prices

From $5,209 SGD

$4,073 USD

As of November 1, 2026

Save $24,244 SGD (82%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $29,453 SGD at Brilliant Earth · As of November 2, 2026

View at Brilliant Earth

About this 12.15ct lab-grown cushion diamond

This 12.15ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG577377305 or 577377305. Listed at 16 retailers as of November 1, 2026, with prices from $5,209 to $29,453, a $24,244 spread on the same certified stone. Brilliant Earth lists it at $29,453. 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

12.15

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle40.4°

Pavilion angle34.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG577377305

Dimensions16.36 × 11.70 × 7.73 mm

L/W Ratio1.40

Girdle conditionFaceted

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

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG577377305

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: Nov 1

Current: $29,453 SGD|Low: $5,209 SGD|High: $30,361 SGD|Avg: $9,920 SGD|-3.0%

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

November 3, 2026

Retailer 6$5,209 SGD

Retailer 15$5,396 SGD

Retailer 8$5,595 SGD

Retailer 5$5,655 SGD

Retailer 9$6,900 SGD

Retailer 2$6,980 SGD

Retailer 14$8,273 SGD

Retailer 4$8,283 SGD

Retailer 3$8,367 SGD

Retailer 10$8,855 SGD

Retailer 7$9,689 SGD

Retailer 12$10,102 SGD

Retailer 11$12,758 SGD

Retailer 13$13,588 SGD

Brilliant Earth$29,453 SGD

30 data points across 15 retailers

16 retailers$5,209 SGD to $29,453 SGD

Cheapest Retailer

$5,209 SGD

$4,073 USD

Final sale: no returns

Retailer 2

$5,396 SGD

$4,219 USD

View

Price last confirmed 21 days ago

Retailer 3

$5,595 SGD

$4,375 USD

View

B+

Retailer 4

$6,900 SGD

$5,395 USD

View

Retailer 5

$6,980 SGD

£4,297 GBP

View

Retailer 6

$8,273 SGD

ZAR 104,511 ZAR

View

Price last confirmed 19 days ago

B+

Retailer 7

$8,283 SGD

£5,100 GBP

View

B+

Retailer 8

$8,367 SGD

$6,542 USD

View

B+

Retailer 9

$8,855 SGD

€6,594 EUR

View

Retailer 10

$9,689 SGD

$7,576 USD

View

Price last confirmed 54 days ago

B+

Retailer 11

$10,102 SGD

A$12,152 AUD

View

B+

Retailer 12

$12,758 SGD

$9,976 USD

View

Retailer 13

$13,588 SGD

A$16,346 AUD

View

Retailer 14

$14,979 SGD

$11,712 USD

View

Retailer 15

$19,033 SGD

$14,882 USD

View

Most Expensive

Brilliant Earth

14103520A · Nov 2

$29,453 SGD

$23,030 USD

View

15 more retailers have this diamond

Prices start from $5,209 SGDSave up to $24,244 SGD

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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