Marquise|Natural|GIA

1.01ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 5543785415

Certificate GIA 5543785415

Diamond specifications and retailer prices

From £1,796 GBP
HK$18,800 HKD
As of November 1, 2026
Save £2,147 GBP (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,106 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5543785415. Listed at 18 retailers as of October 28, 2026, with a 120% 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543785415
Dimensions9.86 × 5.19 × 3.30 mm
L/W Ratio1.90
Top View
9.86 mm5.19 mm1.01 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5543785415
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.7%

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: £1,878 GBP|Low: £1,777 GBP|High: £4,007 GBP|Avg: £2,639 GBP|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5£1,796 GBP
Retailer 1£1,878 GBP
Retailer 8£2,090 GBP
Retailer 9£2,176 GBP
Retailer 4£2,463 GBP
Retailer 10£2,464 GBP
Retailer 2£2,496 GBP
Retailer 6£2,759 GBP
Retailer 3£3,941 GBP
Retailer 7£3,943 GBP

35 data points across 10 retailers

18 retailers£1,796 GBP to £3,943 GBP

A
Cheapest Retailer
-
£1,796 GBP
HK$18,800 HKD
A
Retailer 2
-
£1,878 GBP
₹239,683 INR
View
A
Retailer 3
-
£2,090 GBP
SGD 3,785 SGD
View
A
Retailer 4
-
£2,176 GBP
$2,915 USD
View
Final sale: no returns
A
Retailer 5
-
£2,212 GBP
$2,964 USD
View
A
Retailer 6
-
£2,357 GBP
A$4,858 AUD
View
Retailer 7
-
£2,357 GBP
$3,158 USD
View
Price last confirmed 14 days ago
Retailer 8
-
£2,357 GBP
$3,158 USD
View
Price last confirmed 16 days ago
Retailer 9
-
£2,447 GBP
$3,279 USD
View
Price last confirmed 16 days ago
A
Retailer 10
-
£2,463 GBP
View
B+
Retailer 11
-
£2,464 GBP
$3,301 USD
View
B+
Retailer 12
-
£2,496 GBP
SGD 4,519 SGD
View
Retailer 13
-
£2,720 GBP
$3,644 USD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
£2,759 GBP
€3,521 EUR
View
Retailer 15
-
£2,760 GBP
$3,698 USD
View
Price last confirmed 56 days ago
B
Retailer 16
-
£3,941 GBP
View
B
Retailer 17
-
£3,943 GBP
View
Most Expensive
NZ Jewellers
e21cb600-d6fc-4d53-9e28-4f32be184310 · Oct 17
£4,106 GBP
$5,502 USD
View
Price last confirmed 15 days ago
17 more retailers have this diamond
Prices start from £1,796 GBPSave up to £2,147 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
£1,796 GBP