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Round|Natural|GIA

1.80ct L SI2 Round Natural Diamond

EX • L/SI2 • GIA 2556637632

Certificate GIA 2556637632

Diamond specifications and retailer prices

From £2,583 GBP
As of November 4, 2026
Save £2,531 GBP (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £5,113 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.8ct natural round diamond

This 1.8ct natural round sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556637632. Listed at 11 retailers as of November 4, 2026, with prices from £2,583 to £5,113, a £2,531 spread on the same certified stone. NZ Jewellers lists it at £5,113. 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

1.80
Carat
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2556637632
Dimensions7.70 × 7.76 × 4.81 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural
Top View
7.70 mm7.76 mm1.80 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556637632
Side View
Table 59.0%Crown 36°GirdlePavilion 40.8°Culet: NoneDepth 62.2%

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 4
Current: £5,113 GBP|Low: £2,583 GBP|High: £5,332 GBP|Avg: £3,320 GBP|-4.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10£2,583 GBP
Retailer 11£2,894 GBP
Retailer 7£2,935 GBP
Retailer 8£2,935 GBP
Retailer 9£2,935 GBP
Retailer 4£2,936 GBP
Retailer 6£3,044 GBP
Retailer 5£3,300 GBP
Retailer 3£3,387 GBP
Retailer 2£3,680 GBP
NZ Jewellers£5,113 GBP

28 data points across 11 retailers

11 retailers£2,583 GBP to £5,113 GBP

B+
Cheapest Retailer
-
£2,583 GBP
B+
Retailer 2
-
£2,894 GBP
View
B+
Retailer 3
-
£2,935 GBP
View
Retailer 4
-
£2,935 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£2,935 GBP
View
B+
Retailer 6
-
£2,936 GBP
View
B+
Retailer 7
-
£3,044 GBP
View
B
Retailer 8
-
£3,300 GBP
View
B
Retailer 9
-
£3,387 GBP
View
B
Retailer 10
-
£3,680 GBP
View
Most Expensive
B
NZ Jewellers
3efc67b2-70d0-41e6-acb4-38293f932ad5 · Nov 5
£5,113 GBP
$6,882 USD
View
10 more retailers have this diamond
Prices start from £2,583 GBPSave up to £2,531 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+
1.80ct Round
£2,583 GBP