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Marquise|Natural|GIA

1.02ct D SI1 Marquise Natural Diamond

VG • D/SI1 • GIA 2556143149

Certificate GIA 2556143149

Diamond specifications and retailer prices

From £2,422 GBP
As of November 2, 2026
Save £2,150 GBP (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £4,572 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2556143149. Listed at 9 retailers as of October 30, 2026, with prices from £2,422 to £4,572, a £2,150 spread on the same certified stone. NZ Jewellers lists it at £4,572. 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

1.02
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.44°
Pavilion angle38.63°
OriginNatural
Grading LabGIA
CertificateGIA 2556143149
Dimensions10.57 × 5.51 × 3.05 mm
L/W Ratio1.92
Top View
10.57 mm5.51 mm1.02 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2556143149
Side View
Table 66.0%Crown 35.44°Girdle: MED-THKPavilion 38.63°Culet: NoneDepth 55.3%

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: £4,572 GBP|Low: £2,390 GBP|High: £4,789 GBP|Avg: £3,132 GBP|-4.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 3£2,422 GBP
Retailer 5£2,560 GBP
Retailer 2£2,560 GBP
Retailer 8£2,625 GBP
Retailer 6£2,726 GBP
Retailer 7£2,735 GBP
Retailer 10£2,750 GBP
Retailer 9£2,873 GBP
Retailer 4£4,413 GBP
NZ Jewellers£4,572 GBP

44 data points across 10 retailers

9 retailers£2,422 GBP to £4,572 GBP

A
Cheapest Retailer
-
£2,422 GBP
A
Retailer 2
-
£2,560 GBP
$3,435 USD
View
A
Retailer 3
-
£2,560 GBP
View
A
Retailer 4
-
£2,625 GBP
$3,522 USD
View
B+
Retailer 5
-
£2,726 GBP
$3,658 USD
View
B+
Retailer 6
-
£2,735 GBP
$3,670 USD
View
Retailer 7
-
£2,873 GBP
A$5,931 AUD
View
Price last confirmed 24 days ago
B
Retailer 8
-
£4,413 GBP
View
Most Expensive
B
NZ Jewellers
946ab121-8c00-47bc-9593-692d819a7c4b · Oct 30
£4,572 GBP
$6,136 USD
View
8 more retailers have this diamond
Prices start from £2,422 GBPSave up to £2,150 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
1.02ct Marquise
£2,422 GBP