Marquise|Natural|GIA

1.01ct G SI1 Marquise Natural Diamond

ID • G/SI1 • GIA 5242026625

Certificate GIA 5242026625

Diamond specifications and retailer prices

From £1,922 GBP
As of November 6, 2026
Save £2,433 GBP (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,557 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-carat band, graded G 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 5242026625. Listed at 18 retailers as of November 2, 2026, with a 127% 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

1.01
Carat
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5242026625
Dimensions9.64 × 5.21 × 3.42 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
9.64 mm5.21 mm1.01 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5242026625
Side View
Table 63.0%CrownGirdle: STK-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: £2,290 GBP|Low: £1,903 GBP|High: £4,426 GBP|Avg: £2,603 GBP|+0.3%
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 4, 2026
Retailer 2£1,922 GBP
Retailer 6£1,980 GBP
Retailer 8£2,004 GBP
Retailer 12£2,066 GBP
Retailer 4£2,178 GBP
Retailer 15£2,223 GBP
Retailer 7£2,265 GBP
Retailer 1£2,290 GBP
Retailer 3£2,344 GBP
Retailer 17£2,391 GBP
Retailer 14£2,447 GBP
Retailer 10£2,602 GBP
Retailer 9£2,780 GBP
Retailer 11£2,929 GBP
Retailer 5£3,187 GBP
Retailer 13£3,848 GBP
Retailer 16£4,355 GBP

25 data points across 17 retailers

18 retailers£1,922 GBP to £4,355 GBP

A
Cheapest Retailer
-
£1,922 GBP
Retailer 2
-
£1,980 GBP
View
Price last confirmed 9 days ago
A
Retailer 3
-
£2,004 GBP
View
A
Retailer 4
-
£2,066 GBP
View
A
Retailer 5
-
£2,223 GBP
View
Retailer 6
-
£2,265 GBP
View
Price last confirmed 29 days ago
B+
Retailer 7
-
£2,290 GBP
View
B+
Retailer 8
-
£2,344 GBP
View
B+
Retailer 9
-
£2,391 GBP
View
B+
Retailer 10
-
£2,447 GBP
View
B+
Retailer 11
-
£2,543 GBP
View
Retailer 12
-
£2,602 GBP
View
Price last confirmed 3 days ago
Retailer 13
-
£2,780 GBP
View
Price last confirmed 33 days ago
B+
Retailer 14
-
£2,929 GBP
View
B
Retailer 15
-
£3,187 GBP
View
B
Retailer 16
-
£3,848 GBP
View
B
Retailer 17
-
£4,355 GBP
View
Most Expensive
NZ Jewellers
f0c716c4-0514-4f74-b919-abf7405f3dd7 · Sep 30
£4,557 GBP
$6,099 USD
View
Price last confirmed 37 days ago
17 more retailers have this diamond
Prices start from £1,922 GBPSave up to £2,433 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
1.01ct Marquise
£1,922 GBP