CaratHunter
Plans
Cushion|Natural|GIA

1.54ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6561590064

Certificate GIA 6561590064

Diamond specifications and retailer prices

From £2,451 GBP
HK$25,700 HKD
As of November 1, 2026
Save £2,820 GBP (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £5,271 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.54ct natural cushion diamond

This 1.54ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561590064. Listed at 9 retailers as of November 1, 2026, with prices from £2,451 to £5,271, a £2,820 spread on the same certified stone. MOH London lists it at £5,271. 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

1.54
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561590064
Dimensions7.88 × 5.95 × 4.08 mm
L/W Ratio1.32
Key to symbols
Crystal, Cloud, Needle
Top View
7.88 mm5.95 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561590064
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NDepth 68.7%

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: Nov 1
Current: £5,271 GBP|Low: £2,423 GBP|High: £5,378 GBP|Avg: £3,386 GBP|-2.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7£2,451 GBP
Retailer 8£2,730 GBP
Retailer 5£2,829 GBP
Retailer 6£2,941 GBP
Retailer 9£3,133 GBP
Retailer 2£3,140 GBP
Retailer 3£3,804 GBP
Retailer 4£4,661 GBP
MOH London£5,271 GBP

8 data points across 9 retailers

9 retailers£2,451 GBP to £5,271 GBP

A
Cheapest Retailer
-
£2,451 GBP
HK$25,700 HKD
A
Retailer 2
-
£2,730 GBP
$3,664 USD
View
A
Retailer 3
-
£2,829 GBP
€3,615 EUR
View
A
Retailer 4
-
£2,941 GBP
$3,947 USD
View
A
Retailer 5
-
£3,133 GBP
SGD 5,681 SGD
View
A
Retailer 6
-
£3,140 GBP
View
B+
Retailer 7
-
£3,804 GBP
€4,862 EUR
View
B
Retailer 8
-
£4,661 GBP
$6,255 USD
View
Most Expensive
B
MOH London
464636367 · Nov 1
£5,271 GBP
View
8 more retailers have this diamond
Prices start from £2,451 GBPSave up to £2,820 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
1.54ct Cushion
£2,451 GBP