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Cushion|Natural|GIA

1.00ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 7548907409

Certificate GIA 7548907409

Diamond specifications and retailer prices

From £1,395 GBP
HK$14,600 HKD
As of November 1, 2026
Save £1,913 GBP (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,308 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded D 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 7548907409. Listed at 15 retailers as of October 29, 2026, with prices from £1,395 to £3,308, a £1,913 spread on the same certified stone. MOH London lists it at £3,308. 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

1.00
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7548907409
Dimensions7.39 × 5.25 × 3.41 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Top View
7.39 mm5.25 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7548907409
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.0%

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 1
Current: £3,308 GBP|Low: £1,385 GBP|High: £3,419 GBP|Avg: £2,078 GBP|-3.0%
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
October 31, 2026
Retailer 2£1,395 GBP
Retailer 10£1,460 GBP
Retailer 12£1,647 GBP
Retailer 6£1,697 GBP
Retailer 15£1,733 GBP
Retailer 13£1,862 GBP
Retailer 14£1,879 GBP
Retailer 4£1,943 GBP
Retailer 3£1,976 GBP
Retailer 8£2,001 GBP
Retailer 7£2,160 GBP
Retailer 5£2,165 GBP
Retailer 11£2,287 GBP
Retailer 9£2,342 GBP
MOH London£3,308 GBP

31 data points across 15 retailers

15 retailers£1,395 GBP to £3,308 GBP

A
Cheapest Retailer
-
£1,395 GBP
HK$14,600 HKD
A
Retailer 2
-
£1,460 GBP
₹186,304 INR
View
A
Retailer 3
-
£1,647 GBP
$2,207 USD
View
B+
Retailer 4
-
£1,697 GBP
$2,274 USD
View
B+
Retailer 5
-
£1,733 GBP
$2,322 USD
View
Final sale: no returns
B+
Retailer 6
-
£1,862 GBP
$2,495 USD
View
B+
Retailer 7
-
£1,879 GBP
$2,517 USD
View
B+
Retailer 8
-
£1,943 GBP
SGD 3,519 SGD
View
B+
Retailer 9
-
£1,976 GBP
$2,648 USD
View
B+
Retailer 10
-
£2,001 GBP
View
Retailer 11
-
£2,160 GBP
A$4,453 AUD
View
Price last confirmed 25 days ago
B+
Retailer 12
-
£2,165 GBP
$2,900 USD
View
B+
Retailer 13
-
£2,287 GBP
ZAR 49,507 ZAR
View
B+
Retailer 14
-
£2,342 GBP
€2,988 EUR
View
Most Expensive
B
MOH London
131A81AEE · Oct 29
£3,308 GBP
View
14 more retailers have this diamond
Prices start from £1,395 GBPSave up to £1,913 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
1.00ct Cushion
£1,395 GBP