Round|Natural|GIA

1.60ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2235895768

Certificate GIA 2235895768

Diamond specifications and retailer prices

From £2,415 GBP
As of November 5, 2026
Save £637 GBP (21%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,357 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.6ct natural round diamond

This 1.6ct 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 2235895768. Listed at 8 retailers as of November 5, 2026, with a 26% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.60
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2235895768
Dimensions7.41 × 7.45 × 4.65 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Crystal, Needle, Natural
Top View
7.41 mm7.45 mm1.60 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235895768
Side View
Table 58.0%Crown 36°GirdlePavilion 40.8°Culet: NoneDepth 62.6%

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 5
Current: £3,052 GBP|Low: £2,415 GBP|High: £3,074 GBP|Avg: £2,780 GBP|+1.5%
Retailer 1
Retailer 2
Retailer 3
November 5, 2026
Retailer 3£2,415 GBP
Retailer 2£2,918 GBP
Retailer 1£3,052 GBP

25 data points across 3 retailers

8 retailers£2,415 GBP to £3,052 GBP

B+
Cheapest Retailer
-
£2,415 GBP
Retailer 2
-
£2,501 GBP
View
Price last confirmed 29 days ago
Retailer 3
-
£2,501 GBP
View
Price last confirmed 29 days ago
Retailer 4
-
£2,597 GBP
View
Price last confirmed 38 days ago
Retailer 5
-
£2,886 GBP
View
Price last confirmed 38 days ago
B
Retailer 6
-
£2,918 GBP
View
B
Retailer 7
-
£3,052 GBP
View
Most Expensive
NZ Jewellers
8f046a1b-001b-4315-9db8-4eefdade978c · Sep 28
£4,357 GBP
$5,864 USD
View
Price last confirmed 39 days ago
7 more retailers have this diamond
Prices start from £2,415 GBPSave up to £637 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+
1.60ct Round
£2,415 GBP