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Cushion|Natural|GIA

1.03ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 2111392420

Certificate GIA 2111392420

Diamond specifications and retailer prices

From £1,319 GBP
As of November 4, 2026
Save £1,178 GBP (47%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,496 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct natural cushion diamond

This 1.03ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2111392420. Listed at 4 retailers as of November 4, 2026, with prices from £1,319 to £2,496, a £1,178 spread on the same certified stone. MOH London lists it at £2,496. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.03
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2111392420
Dimensions5.88 × 5.41 × 3.90 mm
L/W Ratio1.09
Key to symbols
Twinning Wisp, Crystal, Indented Natural, Feather, Natural
Top View
5.88 mm5.41 mm1.03 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2111392420
Side View
Table 59.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 72.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,496 GBP|Low: £1,278 GBP|High: £2,533 GBP|Avg: £1,796 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4£1,319 GBP
Retailer 3£1,551 GBP
Retailer 2£1,818 GBP
MOH London£2,496 GBP

41 data points across 4 retailers

4 retailers£1,319 GBP to £2,496 GBP

B+
Cheapest Retailer
-
£1,319 GBP
B
Retailer 2
-
£1,551 GBP
View
B
Retailer 3
-
£1,818 GBP
View
Most Expensive
B
MOH London
7C9D64180 · Nov 4
£2,496 GBP
View
3 more retailers have this diamond
Prices start from £1,319 GBPSave up to £1,178 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.

B+
1.03ct Cushion
£1,319 GBP