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Marquise|Natural|GIA

1.00ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 7561081488

Certificate GIA 7561081488

Diamond specifications and retailer prices

From £1,710 GBP
As of November 5, 2026
Save £2,114 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,982 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7561081488. Listed at 17 retailers as of November 1, 2026, with a 124% 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

1.00
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7561081488
Dimensions9.82 × 5.18 × 3.31 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity
Top View
9.82 mm5.18 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7561081488
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.9%

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 5
Current: £2,790 GBP|Low: £1,710 GBP|High: £3,869 GBP|Avg: £2,456 GBP|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 2£1,710 GBP
Retailer 6£1,986 GBP
Retailer 8£2,286 GBP
Retailer 3£2,365 GBP
Retailer 9£2,374 GBP
Retailer 7£2,442 GBP
Retailer 4£2,509 GBP
Retailer 1£2,790 GBP
Retailer 5£3,823 GBP

37 data points across 9 retailers

17 retailers£1,710 GBP to £3,823 GBP

A
Cheapest Retailer
-
£1,710 GBP
B+
Retailer 2
-
£1,986 GBP
View
B+
Retailer 3
-
£2,047 GBP
View
B+
Retailer 4
-
£2,225 GBP
View
Retailer 5
-
£2,286 GBP
View
Price last confirmed 38 days ago
B+
Retailer 6
-
£2,286 GBP
View
Retailer 7
-
£2,286 GBP
View
Price last confirmed 20 days ago
B+
Retailer 8
-
£2,365 GBP
View
B+
Retailer 9
-
£2,374 GBP
View
B+
Retailer 10
-
£2,392 GBP
View
Retailer 11
-
£2,442 GBP
View
Price last confirmed 29 days ago
B+
Retailer 12
-
£2,509 GBP
View
Retailer 13
-
£2,638 GBP
View
Price last confirmed 37 days ago
Retailer 14
-
£2,731 GBP
View
Price last confirmed 60 days ago
B+
Retailer 15
-
£2,790 GBP
View
B
Retailer 16
-
£3,823 GBP
View
Most Expensive
NZ Jewellers
3f5f716f-ebfd-4eed-adde-67ff09081115 · Sep 30
£3,982 GBP
$5,360 USD
View
Price last confirmed 36 days ago
16 more retailers have this diamond
Prices start from £1,710 GBPSave up to £2,114 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
1.00ct Marquise
£1,710 GBP