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Marquise|Natural|GIA

1.02ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 5553010347

Certificate GIA 5553010347

Diamond specifications and retailer prices

From £1,903 GBP
As of November 6, 2026
Save £2,255 GBP (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,652 GBP at NZ Jewellers · As of September 25, 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 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 5553010347. Listed at 20 retailers as of November 4, 2026, with a 118% 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

1.02
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553010347
Dimensions9.65 × 5.21 × 3.43 mm
L/W Ratio1.85
Top View
9.65 mm5.21 mm1.02 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553010347
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.8%

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 6
Current: £2,137 GBP|Low: £1,874 GBP|High: £4,168 GBP|Avg: £2,587 GBP|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 6£1,903 GBP
Retailer 16£1,990 GBP
Retailer 9£1,996 GBP
Retailer 17£2,043 GBP
Retailer 8£2,084 GBP
Retailer 1£2,137 GBP
Retailer 4£2,200 GBP
Retailer 14£2,248 GBP
Retailer 7£2,323 GBP
Retailer 5£2,368 GBP
Retailer 10£2,418 GBP
Retailer 12£2,564 GBP
Retailer 3£2,756 GBP
Retailer 11£2,885 GBP
Retailer 13£3,042 GBP
Retailer 2£3,802 GBP
Retailer 15£4,158 GBP

23 data points across 17 retailers

20 retailers£1,903 GBP to £4,158 GBP

A
Cheapest Retailer
-
£1,903 GBP
A
Retailer 2
-
£1,990 GBP
View
A
Retailer 3
-
£1,996 GBP
View
A
Retailer 4
-
£2,043 GBP
View
B+
Retailer 5
-
£2,084 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,137 GBP
View
B+
Retailer 7
-
£2,200 GBP
View
B+
Retailer 8
-
£2,248 GBP
View
B+
Retailer 9
-
£2,323 GBP
View
B+
Retailer 10
-
£2,368 GBP
View
B+
Retailer 11
-
£2,418 GBP
View
B+
Retailer 12
-
£2,564 GBP
View
B
Retailer 13
-
£2,597 GBP
View
Retailer 14
-
£2,740 GBP
View
Price last confirmed 34 days ago
B+
Retailer 15
-
£2,756 GBP
View
B+
Retailer 16
-
£2,885 GBP
View
B
Retailer 17
-
£3,042 GBP
View
B
Retailer 18
-
£3,802 GBP
View
B
Retailer 19
-
£4,158 GBP
View
Most Expensive
NZ Jewellers
5984557d-ad24-409b-88e7-120d20b18c50 · Sep 25
£4,652 GBP
$6,227 USD
View
Price last confirmed 42 days ago
19 more retailers have this diamond
Prices start from £1,903 GBPSave up to £2,255 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
£1,903 GBP