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Round|Natural|GIA

1.50ct K SI1 Round Natural Diamond

VG • K/SI1 • GIA 2567114131

Certificate GIA 2567114131

Diamond specifications and retailer prices

From £2,061 GBP
As of November 4, 2026
Save £2,326 GBP (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,387 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2567114131. Listed at 16 retailers as of November 4, 2026, with prices from £2,061 to £4,387, a £2,326 spread on the same certified stone. NZ Jewellers lists it at £4,387. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 2567114131
Dimensions7.13 × 7.07 × 4.61 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Needle, Natural
Top View
7.13 mm7.07 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2567114131
Side View
Table 56.0%Crown 37.5°Girdle: ThickPavilion 40.2°Culet: NDepth 64.9%

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 4
Current: £4,387 GBP|Low: £2,061 GBP|High: £4,498 GBP|Avg: £2,842 GBP|-2.5%
NZ Jewellers
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
Retailer 16
November 6, 2026
Retailer 7£2,061 GBP
Retailer 4£2,235 GBP
Retailer 15£2,430 GBP
Retailer 3£2,518 GBP
Retailer 14£2,518 GBP
Retailer 5£2,534 GBP
Retailer 9£2,589 GBP
Retailer 8£2,612 GBP
Retailer 16£2,615 GBP
Retailer 13£2,624 GBP
Retailer 2£2,742 GBP
Retailer 6£2,905 GBP
Retailer 10£2,924 GBP
Retailer 11£3,073 GBP
Retailer 12£4,199 GBP
NZ Jewellers£4,387 GBP

23 data points across 16 retailers

16 retailers£2,061 GBP to £4,387 GBP

A
Cheapest Retailer
-
£2,061 GBP
A
Retailer 2
-
£2,235 GBP
View
A
Retailer 3
-
£2,430 GBP
View
B+
Retailer 4
-
£2,518 GBP
View
Retailer 5
-
£2,518 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£2,534 GBP
View
B+
Retailer 7
-
£2,589 GBP
View
Retailer 8
-
£2,612 GBP
View
Price last confirmed 12 days ago
B+
Retailer 9
-
£2,615 GBP
View
B+
Retailer 10
-
£2,624 GBP
View
B+
Retailer 11
-
£2,742 GBP
View
B+
Retailer 12
-
£2,905 GBP
View
B+
Retailer 13
-
£2,924 GBP
View
B+
Retailer 14
-
£3,073 GBP
View
B
Retailer 15
-
£4,199 GBP
View
Most Expensive
B
NZ Jewellers
0608f878-699a-4020-8ffd-8168a5562042 · Nov 5
£4,387 GBP
$5,904 USD
View
15 more retailers have this diamond
Prices start from £2,061 GBPSave up to £2,326 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
1.50ct Round
£2,061 GBP