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Marquise|Natural|IGI

1.51ct L SI2 Marquise Natural Diamond

EX • L/SI2 • IGI 538263831

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 538263831

Diamond specifications and retailer prices

From £2,381 GBP
As of November 6, 2026
Save £2,778 GBP (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £5,159 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise 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 IGI 538263831. Listed at 9 retailers as of November 5, 2026, with prices from £2,381 to £5,159, a £2,778 spread on the same certified stone. NZ Jewellers lists it at £5,159. 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

1.51
Carat
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle38.6°
OriginNatural
Grading LabIGI
CertificateIGI 538263831
Dimensions12.21 × 5.80 × 3.52 mm
L/W Ratio2.11
Girdle conditionFaceted
Culet sizeVery Small
Cert comments
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Top View
12.21 mm5.80 mm1.51 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 538263831
Side View
Table 56.0%Crown 37.5°Girdle: STK-VTKPavilion 38.6°Culet: Very SmallDepth 60.7%

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: £5,159 GBP|Low: £2,037 GBP|High: £5,159 GBP|Avg: £3,141 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 3£2,037 GBP
Retailer 8£2,381 GBP
Retailer 9£2,496 GBP
Retailer 4£2,682 GBP
Retailer 7£2,682 GBP
Retailer 5£2,785 GBP
Retailer 6£3,095 GBP
Retailer 2£3,222 GBP
Retailer 11£3,584 GBP
Retailer 10£4,244 GBP
NZ Jewellers£5,159 GBP

22 data points across 11 retailers

9 retailers£2,381 GBP to £5,159 GBP

B+
Cheapest Retailer
-
£2,381 GBP
B+
Retailer 2
-
£2,496 GBP
View
B
Retailer 3
-
£2,682 GBP
View
Retailer 4
-
£2,682 GBP
View
Price last confirmed 8 days ago
B
Retailer 5
-
£2,785 GBP
View
B
Retailer 6
-
£3,095 GBP
View
B
Retailer 7
-
£3,222 GBP
View
C
Retailer 8
-
£4,244 GBP
View
Most Expensive
C
NZ Jewellers
a0a49268-6421-4df6-876d-4aad60c84721 · Nov 5
£5,159 GBP
$6,905 USD
View
8 more retailers have this diamond
Prices start from £2,381 GBPSave up to £2,778 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 Marquise
£2,381 GBP