Oval|Lab Grown|GIA

3.12ct D IF Oval Lab Grown Diamond

EX • D/IF • GIA 3515765256

Certificate GIA 3515765256

Diamond specifications and retailer prices

From £2,158 GBP

$2,891 USD

As of October 29, 2026

Save £9,001 GBP (81%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: £13,262 GBP at Do Amore Diamonds · As of October 29, 2026

View at Do Amore Diamonds

About this 3.12ct lab-grown oval diamond

This 3.12ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3515765256. Listed at 18 retailers as of October 29, 2026, with a 417% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.12

Carat

Colour

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

OriginLab Grown

Grading LabGIA

CertificateGIA 3515765256

Dimensions11.88 × 8.25 × 5.15 mm

L/W Ratio1.44

View GIA Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 3515765256

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 29

Current: £3,352 GBP|Low: £2,158 GBP|High: £20,191 GBP|Avg: £5,535 GBP|-0.6%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

October 30, 2026

Retailer 12£2,158 GBP

Retailer 3£2,276 GBP

Retailer 6£3,169 GBP

Retailer 1£3,352 GBP

Retailer 2£4,277 GBP

Retailer 7£5,581 GBP

Retailer 9£6,024 GBP

Retailer 10£6,152 GBP

Retailer 4£6,199 GBP

Retailer 5£6,288 GBP

Retailer 11£9,996 GBP

Retailer 8£10,867 GBP

40 data points across 12 retailers

18 retailers£2,158 GBP to £11,159 GBP

Retailer 1

£1,850 GBP

$2,479 USD

Price last confirmed 28 days ago

Retailer 2

£2,158 GBP

$2,891 USD

View

Final sale: no returns

Retailer 3

£2,235 GBP

$2,995 USD

View

Price last confirmed 27 days ago

Retailer 4

£2,276 GBP

$3,050 USD

View

B+

Retailer 5

£3,169 GBP

$4,246 USD

View

B+

Retailer 6

£3,352 GBP

View

Retailer 7

£3,392 GBP

$4,545 USD

View

Price last confirmed 30 days ago

B+

Retailer 8

£4,277 GBP

View

Retailer 9

£5,581 GBP

A$11,505 AUD

View

Price last confirmed 8 days ago

Retailer 10

£6,024 GBP

$8,072 USD

View

Retailer 11

£6,152 GBP

$8,243 USD

View

Retailer 12

£6,199 GBP

$8,305 USD

View

B+

Retailer 13

£6,288 GBP

View

Retailer 14

£8,677 GBP

$11,627 USD

View

Retailer 15

£9,996 GBP

$13,394 USD

View

Retailer 16

£10,867 GBP

$14,560 USD

View

Retailer 17

£11,159 GBP

$14,952 USD

View

Most Expensive

Do Amore Diamonds

27-D1D8DCD13 · Oct 29

£13,262 GBP

$17,770 USD

View

Price under review

17 more retailers have this diamond

Prices start from £2,158 GBPSave up to £9,001 GBP

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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£2,158 GBP