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Emerald|Natural|IGI

1.51ct K SI1 Emerald Natural Diamond

VG • K/SI1 • IGI 717504369

Shape and cutting style on the report: Emerald cut

Certificate IGI 717504369

Diamond specifications and retailer prices

From £1,855 GBP
As of November 6, 2026
Save £2,476 GBP (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,331 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural emerald diamond

This 1.51ct natural emerald 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 IGI 717504369. Listed at 13 retailers as of November 5, 2026, with prices from £1,855 to £4,331, a £2,476 spread on the same certified stone. NZ Jewellers lists it at £4,331. 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

1.51
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle39°
OriginNatural
Grading LabIGI
CertificateIGI 717504369
Dimensions7.83 × 5.42 × 3.53 mm
L/W Ratio1.44
Culet sizeLong
Top View
7.83 mm5.42 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 717504369
Side View
Table 69.0%Crown 40.5°Girdle: MediumPavilion 39°Culet: LNGDepth 65.1%

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: £4,331 GBP|Low: £1,855 GBP|High: £4,331 GBP|Avg: £2,506 GBP
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 11£1,855 GBP
Retailer 3£1,975 GBP
Retailer 8£2,071 GBP
Retailer 10£2,071 GBP
Retailer 6£2,151 GBP
Retailer 5£2,231 GBP
Retailer 9£2,390 GBP
Retailer 2£2,410 GBP
Retailer 4£2,528 GBP
Retailer 7£3,629 GBP
NZ Jewellers£4,331 GBP

45 data points across 11 retailers

13 retailers£1,855 GBP to £4,331 GBP

B+
Cheapest Retailer
-
£1,855 GBP
B+
Retailer 2
-
£1,975 GBP
View
B+
Retailer 3
-
£2,032 GBP
View
B+
Retailer 4
-
£2,071 GBP
View
Retailer 5
-
£2,071 GBP
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£2,151 GBP
View
B+
Retailer 7
-
£2,176 GBP
View
B+
Retailer 8
-
£2,231 GBP
View
B+
Retailer 9
-
£2,390 GBP
View
B+
Retailer 10
-
£2,410 GBP
View
B+
Retailer 11
-
£2,528 GBP
View
B
Retailer 12
-
£3,629 GBP
View
Most Expensive
C
NZ Jewellers
06b3c878-9c10-47ff-8dab-f263831d08c2 · Nov 5
£4,331 GBP
$5,829 USD
View
12 more retailers have this diamond
Prices start from £1,855 GBPSave up to £2,476 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+
1.51ct Emerald
£1,855 GBP