Marquise|Natural|GIA

1.01ct G SI2 Marquise Natural Diamond

ID • G/SI2 • GIA 2554913790

Certificate GIA 2554913790

Diamond specifications and retailer prices

From £1,765 GBP
HK$18,500 HKD
As of November 1, 2026
Save £2,163 GBP (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,081 GBP at NZ Jewellers · As of October 17, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554913790. Listed at 18 retailers as of October 28, 2026, with a 123% 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554913790
Dimensions11.70 × 5.00 × 2.93 mm
L/W Ratio2.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Cloud, Knot, Needle, Indented Natural
Top View
11.70 mm5.00 mm1.01 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554913790
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.5%

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 1
Current: £2,440 GBP|Low: £1,746 GBP|High: £3,970 GBP|Avg: £2,570 GBP|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9£1,765 GBP
Retailer 7£1,844 GBP
Retailer 11£2,055 GBP
Retailer 5£2,154 GBP
Retailer 6£2,418 GBP
Retailer 1£2,440 GBP
Retailer 2£2,455 GBP
Retailer 3£2,519 GBP
Retailer 4£2,731 GBP
Retailer 8£3,918 GBP
Retailer 10£3,928 GBP

31 data points across 11 retailers

18 retailers£1,765 GBP to £3,928 GBP

A
Cheapest Retailer
-
£1,765 GBP
HK$18,500 HKD
A
Retailer 2
-
£1,844 GBP
₹235,694 INR
View
A
Retailer 3
-
£2,055 GBP
SGD 3,726 SGD
View
A
Retailer 4
-
£2,154 GBP
$2,890 USD
View
Final sale: no returns
B+
Retailer 5
-
£2,174 GBP
$2,918 USD
View
B+
Retailer 6
-
£2,314 GBP
A$4,778 AUD
View
Retailer 7
-
£2,343 GBP
$3,144 USD
View
Price last confirmed 15 days ago
Retailer 8
-
£2,343 GBP
$3,144 USD
View
Price last confirmed 17 days ago
B+
Retailer 9
-
£2,418 GBP
View
Retailer 10
-
£2,433 GBP
$3,265 USD
View
Price last confirmed 16 days ago
B+
Retailer 11
-
£2,440 GBP
$3,275 USD
View
B+
Retailer 12
-
£2,455 GBP
SGD 4,452 SGD
View
B+
Retailer 13
-
£2,519 GBP
$3,380 USD
View
Retailer 14
-
£2,704 GBP
$3,628 USD
View
Price last confirmed 14 days ago
B+
Retailer 15
-
£2,731 GBP
€3,490 EUR
View
B
Retailer 16
-
£3,918 GBP
View
B
Retailer 17
-
£3,928 GBP
View
Most Expensive
NZ Jewellers
c35a28e0-03de-4b92-ba58-fc027a1e10b9 · Oct 17
£4,081 GBP
$5,477 USD
View
Price last confirmed 15 days ago
17 more retailers have this diamond
Prices start from £1,765 GBPSave up to £2,163 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
£1,765 GBP