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Cushion|Lab Grown|GCAL

3.12ct I SI1 Cushion Lab Grown Diamond

VG • I/SI1 • GCAL 302750364

Certificate GCAL 302750364

Diamond specifications and retailer prices

From €834 EUR
$932 USD
As of October 30, 2026
Save €1,902 EUR (70%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €2,736 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 3.12ct lab-grown cushion diamond

This 3.12ct lab-grown cushion sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GCAL 302750364. Listed at 3 retailers as of October 29, 2026, with prices from €834 to €2,736, a €1,902 spread on the same certified stone. MOH London lists it at €2,736. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.12
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGCAL
CertificateGCAL 302750364
Dimensions8.91 × 8.25 × 5.57 mm
L/W Ratio1.08
Top View
8.91 mm8.25 mm3.12 ctI / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGCAL 302750364
Side View
Table 63.0%CrownGirdlePavilionCulet: NoneDepth 67.5%

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 30
Current: €2,736 EUR|Low: €834 EUR|High: €2,754 EUR|Avg: €1,484 EUR|-0.5%
MOH London
Retailer 2
Retailer 3
October 29, 2026
Retailer 3€834 EUR
Retailer 2€881 EUR
MOH London€2,736 EUR

6 data points across 3 retailers

3 retailers€834 EUR to €2,736 EUR

B+
Cheapest Retailer
-
€834 EUR
$932 USD
B+
Retailer 2
-
€881 EUR
$984 USD
View
Most Expensive
B
MOH London
LG302750364 · Oct 29
€2,736 EUR
£2,407 GBP
View
2 more retailers have this diamond
Prices start from €834 EURSave up to €1,902 EUR

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.

B+
3.12ct Cushion
€834 EUR