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Marquise|Natural|GIA

1.30ct H SI2 Marquise Natural Diamond

ID • H/SI2 • GIA 1558695560

Certificate GIA 1558695560

Diamond specifications and retailer prices

From £4,322 GBP
$5,791 USD
As of November 1, 2026
Save £3,076 GBP (42%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £8,398 GBP at NZ Jewellers · As of September 25, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558695560. Listed at 6 retailers as of November 1, 2026, with a 71% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558695560
Dimensions11.08 × 5.69 × 3.45 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizeNone
Top View
11.08 mm5.69 mm1.30 ctH / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558695560
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.6%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £4,965 GBP|Low: £4,322 GBP|High: £7,478 GBP|Avg: £5,330 GBP|-0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7£4,322 GBP
Retailer 6£4,632 GBP
Retailer 3£4,776 GBP
Retailer 1£4,965 GBP
Retailer 2£5,134 GBP
Retailer 5£5,987 GBP
Retailer 4£7,398 GBP

8 data points across 7 retailers

6 retailers£4,322 GBP to £7,398 GBP

B+
Cheapest Retailer
-
£4,322 GBP
$5,791 USD
B+
Retailer 2
-
£4,776 GBP
View
B
Retailer 3
-
£4,965 GBP
View
B
Retailer 4
-
£5,134 GBP
€6,551 EUR
View
B
Retailer 5
-
£7,398 GBP
View
Most Expensive
NZ Jewellers
6b107072-afd4-441f-905a-d65fda2ab325 · Sep 25
£8,398 GBP
$11,253 USD
View
Price last confirmed 38 days ago
5 more retailers have this diamond
Prices start from £4,322 GBPSave up to £3,076 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
£4,322 GBP