CaratHunter
Plans
Cushion|Natural|GIA

1.02ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 3555269390

Certificate GIA 3555269390

Diamond specifications and retailer prices

From £984 GBP
HK$10,300 HKD
As of October 27, 2026
Save £1,294 GBP (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,278 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.02ct natural cushion diamond

This 1.02ct natural cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555269390. Listed at 17 retailers as of October 26, 2026, with prices from £984 to £2,278, a £1,294 spread on the same certified stone. MOH London lists it at £2,278. 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

1.02
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.29°
Pavilion angle35.9°
OriginNatural
Grading LabGIA
CertificateGIA 3555269390
Dimensions5.80 × 5.63 × 3.81 mm
L/W Ratio1.03
Girdle conditionFaceted
Top View
5.80 mm5.63 mm1.02 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555269390
Side View
Table 62.0%Crown 37.29°Girdle: THN-STKPavilion 35.9°Culet: NoneDepth 67.7%

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: Oct 27
Current: £2,278 GBP|Low: £926 GBP|High: £2,309 GBP|Avg: £1,360 GBP|-0.6%
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
Retailer 18
Retailer 19
October 27, 2026
Retailer 4£984 GBP
Retailer 7£1,085 GBP
Retailer 14£1,093 GBP
Retailer 8£1,100 GBP
Retailer 3£1,101 GBP
Retailer 16£1,130 GBP
Retailer 18£1,147 GBP
Retailer 11£1,174 GBP
Retailer 15£1,268 GBP
Retailer 6£1,305 GBP
Retailer 5£1,388 GBP
Retailer 9£1,388 GBP
Retailer 19£1,433 GBP
Retailer 2£1,446 GBP
Retailer 17£1,579 GBP
Retailer 13£1,581 GBP
Retailer 10£1,687 GBP
Retailer 12£1,763 GBP
MOH London£2,278 GBP

26 data points across 19 retailers

17 retailers£984 GBP to £2,278 GBP

A
Cheapest Retailer
-
£984 GBP
HK$10,300 HKD
A
Retailer 2
-
£1,093 GBP
$1,464 USD
View
A
Retailer 3
-
£1,100 GBP
$1,474 USD
View
A
Retailer 4
-
£1,101 GBP
$1,475 USD
View
A
Retailer 5
-
£1,130 GBP
$1,514 USD
View
A
Retailer 6
-
£1,147 GBP
$1,537 USD
View
A
Retailer 7
-
£1,268 GBP
View
A
Retailer 8
-
£1,305 GBP
$1,749 USD
View
A
Retailer 9
-
£1,388 GBP
$1,860 USD
View
A
Retailer 10
-
£1,388 GBP
$1,860 USD
View
A
Retailer 11
-
£1,433 GBP
$1,920 USD
View
A
Retailer 12
-
£1,446 GBP
View
A
Retailer 13
-
£1,579 GBP
$2,116 USD
View
A
Retailer 14
-
£1,581 GBP
ZAR 34,213 ZAR
View
Retailer 15
-
£1,687 GBP
A$3,478 AUD
View
Price last confirmed 30 days ago
B+
Retailer 16
-
£1,763 GBP
€2,250 EUR
View
Most Expensive
B+
MOH London
8177D585F · Oct 26
£2,278 GBP
View
16 more retailers have this diamond
Prices start from £984 GBPSave up to £1,294 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.

A
1.02ct Cushion
£984 GBP