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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 5553877458

Certificate GIA 5553877458

Diamond specifications and retailer prices

From £6,133 GBP
₹782,577 INR
As of November 1, 2026
Save £5,115 GBP (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £11,248 GBP at NZ Jewellers · As of October 30, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553877458. Listed at 14 retailers as of October 30, 2026, with prices from £6,133 to £11,248, a £5,115 spread on the same certified stone. NZ Jewellers lists it at £11,248. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5553877458
Dimensions13.58 × 5.56 × 3.16 mm
L/W Ratio2.44
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Twinning Wisp, Needle
Top View
13.58 mm5.56 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5553877458
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 56.9%

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 1
Current: £8,097 GBP|Low: £6,118 GBP|High: £10,667 GBP|Avg: £7,908 GBP|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 3£6,133 GBP
Retailer 5£6,487 GBP
Retailer 2£7,321 GBP
Retailer 7£8,070 GBP
Retailer 1£8,097 GBP
Retailer 6£8,194 GBP
Retailer 4£10,540 GBP

43 data points across 7 retailers

14 retailers£6,133 GBP to £11,248 GBP

A
Cheapest Retailer
-
£6,133 GBP
₹782,577 INR
A
Retailer 2
-
£6,487 GBP
$8,692 USD
View
Final sale: no returns
A
Retailer 3
-
£6,829 GBP
$9,150 USD
View
A
Retailer 4
-
£6,912 GBP
$9,261 USD
View
A
Retailer 5
-
£7,321 GBP
View
B+
Retailer 6
-
£7,449 GBP
$9,981 USD
View
B+
Retailer 7
-
£8,070 GBP
$10,813 USD
View
B+
Retailer 8
-
£8,097 GBP
€10,332 EUR
View
B+
Retailer 9
-
£8,194 GBP
$10,979 USD
View
B+
Retailer 10
-
£8,257 GBP
$11,064 USD
View
B
Retailer 11
-
£9,312 GBP
$12,477 USD
View
Retailer 12
-
£9,654 GBP
$12,935 USD
View
Price last confirmed 56 days ago
B
Retailer 13
-
£10,540 GBP
View
Most Expensive
B
NZ Jewellers
4acfa7d8-9450-421e-80a5-34c289f89a5a · Oct 30
£11,248 GBP
$15,071 USD
View
13 more retailers have this diamond
Prices start from £6,133 GBPSave up to £5,115 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
£6,133 GBP