CaratHunter
Plans
Cushion|Lab Grown|IGI

1.51ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG478103509

Shape and cutting style on the report: Cushion rose cut

Certificate IGI LG478103509

Diamond specifications and retailer prices

From €220 EUR
As of November 6, 2026
Save €1,098 EUR (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,318 EUR at MOH London · As of November 5, 2026
View at MOH London

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG478103509 or 478103509. Listed at 18 retailers as of November 5, 2026, with prices from €220 to €1,318, a €1,098 spread on the same certified stone. MOH London lists it at €1,318. 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

1.51
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478103509
Dimensions7.32 × 6.50 × 4.24 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.32 mm6.50 mm1.51 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478103509
Side View
Table 62.5%Crown 32.6°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 65.2%

Caratlytics Score

How it works →
A
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 6
Current: €1,318 EUR|Low: €189 EUR|High: €1,329 EUR|Avg: €599 EUR|+22.3%
MOH London
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
November 7, 2026
Retailer 9€220 EUR
Retailer 17€241 EUR
Retailer 5€279 EUR
Retailer 12€299 EUR
Retailer 15€299 EUR
Retailer 16€356 EUR
Retailer 4€439 EUR
Retailer 3€451 EUR
Retailer 11€577 EUR
Retailer 2€700 EUR
Retailer 8€816 EUR
Retailer 13€918 EUR
Retailer 14€1,060 EUR
Retailer 6€1,207 EUR
Retailer 7€1,239 EUR
Retailer 10€1,303 EUR
MOH London€1,318 EUR

44 data points across 17 retailers

18 retailers€220 EUR to €1,318 EUR

A
Cheapest Retailer
-
€220 EUR
Final sale: no returns
A
Retailer 2
-
€241 EUR
View
A
Retailer 3
-
€279 EUR
View
A
Retailer 4
-
€299 EUR
View
A
Retailer 5
-
€299 EUR
View
A
Retailer 6
-
€356 EUR
View
B+
Retailer 7
-
€439 EUR
View
B+
Retailer 8
-
€451 EUR
View
B+
Retailer 9
-
€577 EUR
View
B
Retailer 10
-
€700 EUR
View
B
Retailer 11
-
€816 EUR
View
B
Retailer 12
-
€918 EUR
View
B
Retailer 13
-
€927 EUR
View
B
Retailer 14
-
€1,060 EUR
View
B
Retailer 15
-
€1,207 EUR
View
B
Retailer 16
-
€1,239 EUR
View
B
Retailer 17
-
€1,303 EUR
View
Most Expensive
B
MOH London
LG478103509 · Nov 5
€1,318 EUR
£1,159 GBP
View
17 more retailers have this diamond
Prices start from €220 EURSave up to €1,098 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.

A
1.51ct Cushion
€220 EUR