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Round|Natural|GIA

1.56ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2534355482

Certificate GIA 2534355482

Diamond specifications and retailer prices

From £1,956 GBP
As of November 6, 2026
Save £2,325 GBP (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,281 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.56ct natural round diamond

This 1.56ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2534355482. Listed at 8 retailers as of November 5, 2026, with prices from £1,956 to £4,281, a £2,325 spread on the same certified stone. NZ Jewellers lists it at £4,281. 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

1.56
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2534355482
Dimensions7.35 × 7.43 × 4.61 mm
L/W Ratio1.01
Top View
7.35 mm7.43 mm1.56 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2534355482
Side View
Table 59.0%CrownGirdlePavilionCuletDepth 62.3%

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 6
Current: £4,281 GBP|Low: £1,926 GBP|High: £4,368 GBP|Avg: £2,481 GBP|-2.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6£1,956 GBP
Retailer 7£2,014 GBP
Retailer 5£2,126 GBP
Retailer 8£2,152 GBP
Retailer 2£2,230 GBP
Retailer 3£2,384 GBP
Retailer 4£2,499 GBP
NZ Jewellers£4,281 GBP

41 data points across 8 retailers

8 retailers£1,956 GBP to £4,281 GBP

B+
Cheapest Retailer
-
£1,956 GBP
B+
Retailer 2
-
£2,014 GBP
View
B+
Retailer 3
-
£2,126 GBP
View
B+
Retailer 4
-
£2,152 GBP
View
B+
Retailer 5
-
£2,230 GBP
View
B+
Retailer 6
-
£2,384 GBP
View
B+
Retailer 7
-
£2,499 GBP
View
Most Expensive
C
NZ Jewellers
52e21441-f283-4943-8505-ec9f1dab89d9 · Nov 5
£4,281 GBP
$5,762 USD
View
7 more retailers have this diamond
Prices start from £1,956 GBPSave up to £2,325 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+
1.56ct Round
£1,956 GBP