Marquise|Natural|GIA

1.30ct D SI1 Marquise Natural Diamond

EX • D/SI1

Diamond specifications and retailer prices

From £5,496 GBP
As of November 6, 2026
Save £6,899 GBP (56%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £12,395 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural marquise diamond

This 1.3ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 11 retailers as of November 5, 2026, with prices from £5,496 to £12,395, a £6,899 spread on the same certified stone. NZ Jewellers lists it at £12,395. 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

1.30
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions10.86 × 5.78 × 3.59 mm
L/W Ratio1.88
Top View
10.86 mm5.78 mm1.30 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA
Side View
Table 66.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £12,395 GBP|Low: £5,496 GBP|High: £12,395 GBP|Avg: £7,337 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10£5,496 GBP
Retailer 3£6,152 GBP
Retailer 7£6,197 GBP
Retailer 4£6,714 GBP
Retailer 5£6,754 GBP
Retailer 9£6,817 GBP
Retailer 2£7,189 GBP
Retailer 6£7,504 GBP
Retailer 8£7,747 GBP
NZ Jewellers£12,395 GBP

23 data points across 10 retailers

11 retailers£5,496 GBP to £12,395 GBP

B+
Cheapest Retailer
-
£5,496 GBP
B+
Retailer 2
-
£6,152 GBP
View
Retailer 3
-
£6,197 GBP
View
Price last confirmed 9 days ago
B
Retailer 4
-
£6,714 GBP
View
Retailer 5
-
£6,714 GBP
View
Price last confirmed 18 days ago
B+
Retailer 6
-
£6,754 GBP
View
B+
Retailer 7
-
£6,817 GBP
View
B+
Retailer 8
-
£7,189 GBP
View
B
Retailer 9
-
£7,504 GBP
View
B
Retailer 10
-
£7,747 GBP
View
Most Expensive
B
NZ Jewellers
81ccaa88-9aa9-4f74-bbe3-acf8d5105e5d · Nov 5
£12,395 GBP
$16,590 USD
View
10 more retailers have this diamond
Prices start from £5,496 GBPSave up to £6,899 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+
1.30ct Marquise
£5,496 GBP