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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

GD • D/SI2 • GIA 1555999788

Certificate GIA 1555999788

Diamond specifications and retailer prices

From £4,929 GBP
₹629,011 INR
As of November 2, 2026
Save £5,961 GBP (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £10,890 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1555999788. Listed at 15 retailers as of October 30, 2026, with prices from £4,929 to £10,890, a £5,961 spread on the same certified stone. NZ Jewellers lists it at £10,890. 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
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555999788
Dimensions10.70 × 5.95 × 3.85 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural
Top View
10.70 mm5.95 mm1.51 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555999788
Side View
Table 63.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 64.7%

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 2
Current: £4,929 GBP|Low: £4,919 GBP|High: £9,184 GBP|Avg: £6,447 GBP|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 1£4,929 GBP
Retailer 5£5,207 GBP
Retailer 7£6,010 GBP
Retailer 3£6,018 GBP
Retailer 6£6,612 GBP
Retailer 2£6,740 GBP
Retailer 4£9,075 GBP

40 data points across 7 retailers

15 retailers£4,929 GBP to £10,890 GBP

A
Cheapest Retailer
-
£4,929 GBP
₹629,011 INR
A
Retailer 2
-
£5,207 GBP
$6,977 USD
View
Final sale: no returns
B+
Retailer 3
-
£5,509 GBP
$7,382 USD
View
B+
Retailer 4
-
£5,627 GBP
$7,540 USD
View
B+
Retailer 5
-
£6,010 GBP
$8,053 USD
View
A
Retailer 6
-
£6,018 GBP
View
B+
Retailer 7
-
£6,068 GBP
$8,130 USD
View
B+
Retailer 8
-
£6,511 GBP
$8,724 USD
View
B+
Retailer 9
-
£6,612 GBP
$8,859 USD
View
B+
Retailer 10
-
£6,653 GBP
$8,914 USD
View
B+
Retailer 11
-
£6,740 GBP
€8,601 EUR
View
B+
Retailer 12
-
£7,513 GBP
$10,067 USD
View
Retailer 13
-
£7,729 GBP
$10,356 USD
View
Price last confirmed 56 days ago
B
Retailer 14
-
£9,075 GBP
View
Most Expensive
B
NZ Jewellers
218bb830-27e3-44fe-b6b1-239dfe633603 · Oct 30
£10,890 GBP
$14,592 USD
View
14 more retailers have this diamond
Prices start from £4,929 GBPSave up to £5,961 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
£4,929 GBP