CaratHunter
Plans
Cushion|Natural|GIA

1.28ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 7358737542

Certificate GIA 7358737542

Diamond specifications and retailer prices

From €2,414 EUR
As of November 4, 2026
Save €2,818 EUR (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €5,231 EUR at MOH London · As of November 7, 2026
View at MOH London

About this 1.28ct natural cushion diamond

This 1.28ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7358737542. Listed at 15 retailers as of November 4, 2026, with prices from €2,414 to €5,231, a €2,818 spread on the same certified stone. MOH London lists it at €5,231. 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

1.28
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7358737542
Dimensions6.42 × 5.66 × 3.77 mm
L/W Ratio1.13
Top View
6.42 mm5.66 mm1.28 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7358737542
Side View
Table 69.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 66.5%

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: Nov 4
Current: €5,231 EUR|Low: €2,459 EUR|High: €5,322 EUR|Avg: €3,243 EUR|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 10€2,459 EUR
Retailer 6€2,476 EUR
Retailer 7€2,552 EUR
Retailer 8€2,675 EUR
Retailer 5€2,849 EUR
Retailer 9€3,064 EUR
Retailer 2€3,254 EUR
Retailer 3€3,453 EUR
Retailer 4€3,838 EUR
MOH London€5,231 EUR

45 data points across 10 retailers

15 retailers€2,414 EUR to €5,231 EUR

B+
Cheapest Retailer
-
€2,414 EUR
B+
Retailer 2
-
€2,459 EUR
View
B+
Retailer 3
-
€2,476 EUR
View
B+
Retailer 4
-
€2,519 EUR
View
B+
Retailer 5
-
€2,552 EUR
View
B
Retailer 6
-
€2,675 EUR
View
B
Retailer 7
-
€2,763 EUR
View
Retailer 8
-
€2,849 EUR
View
Price last confirmed 9 days ago
B
Retailer 9
-
€3,064 EUR
View
B
Retailer 10
-
€3,095 EUR
View
B
Retailer 11
-
€3,254 EUR
View
B
Retailer 12
-
€3,453 EUR
View
Retailer 13
-
€3,563 EUR
View
Price last confirmed 15 days ago
B
Retailer 14
-
€3,838 EUR
View
Most Expensive
C
MOH London
2DE41333E · Nov 7
€5,231 EUR
£4,599 GBP
View
14 more retailers have this diamond
Prices start from €2,414 EURSave up to €2,818 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+
1.28ct Cushion
€2,414 EUR