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Marquise|Natural|GIA

1.51ct K SI2 Marquise Natural Diamond

ID • K/SI2 • GIA 1553383300

Certificate GIA 1553383300

Diamond specifications and retailer prices

From £3,372 GBP
As of November 5, 2026
Save £4,187 GBP (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £7,559 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553383300. Listed at 11 retailers as of November 5, 2026, with prices from £3,372 to £7,559, a £4,187 spread on the same certified stone. NZ Jewellers lists it at £7,559. 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
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553383300
Dimensions11.04 × 5.99 × 3.80 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Knot, Crystal, Cavity, Needle, Indented Natural
Top View
11.04 mm5.99 mm1.51 ctK / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1553383300
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 63.4%

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 5
Current: £7,559 GBP|Low: £3,372 GBP|High: £8,395 GBP|Avg: £5,161 GBP|-10.0%
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 7£3,372 GBP
Retailer 11£3,759 GBP
Retailer 10£3,907 GBP
Retailer 6£4,208 GBP
Retailer 8£4,328 GBP
Retailer 4£4,335 GBP
Retailer 3£4,358 GBP
Retailer 2£4,909 GBP
Retailer 9£6,611 GBP
Retailer 5£6,640 GBP
NZ Jewellers£7,559 GBP

42 data points across 11 retailers

11 retailers£3,372 GBP to £7,559 GBP

A
Cheapest Retailer
-
£3,372 GBP
B+
Retailer 2
-
£3,759 GBP
View
B+
Retailer 3
-
£3,907 GBP
View
B+
Retailer 4
-
£4,208 GBP
View
B+
Retailer 5
-
£4,328 GBP
View
B+
Retailer 6
-
£4,335 GBP
View
B+
Retailer 7
-
£4,358 GBP
View
B
Retailer 8
-
£4,909 GBP
View
B
Retailer 9
-
£6,611 GBP
View
B
Retailer 10
-
£6,640 GBP
View
Most Expensive
B
NZ Jewellers
0cf6a239-952c-461e-9423-3f241acea6c2 · Nov 5
£7,559 GBP
$10,118 USD
View
10 more retailers have this diamond
Prices start from £3,372 GBPSave up to £4,187 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
1.51ct Marquise
£3,372 GBP