Marquise|Natural|GIA

1.02ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 3535937494

Certificate GIA 3535937494

Diamond specifications and retailer prices

From £3,379 GBP
CA$6,287 CAD
As of October 30, 2026
Save £519 GBP (13%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £6,427 GBP at NZ Jewellers · As of September 30, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3535937494. Listed at 15 retailers as of October 30, 2026, with a relatively tight 15% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.83°
OriginNatural
Grading LabGIA
CertificateGIA 3535937494
Dimensions10.05 × 5.31 × 3.36 mm
L/W Ratio1.89
Top View
10.05 mm5.31 mm1.02 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3535937494
Side View
Table 59.0%Crown 34.83°Girdle: Slightly ThickPavilionCulet: NoneDepth 63.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £6,427 GBP|Low: £2,929 GBP|High: £6,427 GBP|Avg: £3,819 GBP
NZ Jewellers
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 6, 2026
Retailer 14£2,941 GBP
Retailer 22£2,968 GBP
Retailer 5£3,164 GBP
Retailer 8£3,322 GBP
Retailer 3£3,342 GBP
Retailer 17£3,342 GBP
Retailer 21£3,342 GBP
Retailer 12£3,379 GBP
Retailer 15£3,508 GBP
Retailer 6£3,535 GBP
Retailer 19£3,642 GBP
Retailer 13£3,669 GBP
Retailer 16£3,738 GBP
Retailer 9£3,754 GBP
Retailer 11£3,754 GBP
Retailer 4£3,856 GBP
Retailer 10£3,881 GBP
Retailer 7£4,073 GBP
Retailer 2£4,144 GBP
Retailer 18£4,448 GBP
Retailer 20£5,947 GBP
NZ Jewellers£6,427 GBP

19 data points across 22 retailers

15 retailers£3,379 GBP to £3,897 GBP

Retailer 1
-
£2,941 GBP
$3,940 USD
Price last confirmed 26 days ago
Retailer 2
-
£3,139 GBP
$4,206 USD
View
Price last confirmed 27 days ago
Retailer 3
-
£3,342 GBP
$4,478 USD
View
Price last confirmed 32 days ago
Retailer 4
-
£3,342 GBP
$4,478 USD
View
Price last confirmed 31 days ago
B+
Retailer 5
-
£3,379 GBP
CA$6,287 CAD
View
B+
Retailer 6
-
£3,508 GBP
$4,700 USD
View
Retailer 7
-
£3,642 GBP
View
Price last confirmed 33 days ago
Retailer 8
-
£3,738 GBP
A$7,706 AUD
View
Price last confirmed 29 days ago
Retailer 9
-
£3,856 GBP
$5,167 USD
View
Price last confirmed 34 days ago
B+
Retailer 10
-
£3,897 GBP
$5,222 USD
View
Retailer 11
-
£4,073 GBP
$5,457 USD
View
Price last confirmed 28 days ago
Retailer 12
-
£4,448 GBP
ZAR 96,286 ZAR
View
Price last confirmed 32 days ago
Retailer 13
-
£5,555 GBP
$7,442 USD
View
Price last confirmed 30 days ago
Retailer 14
-
£5,947 GBP
View
Price last confirmed 29 days ago
Most Expensive
NZ Jewellers
e827a47f-aa99-4d7b-a8e2-09c1be8b0ebe · Sep 30
£6,427 GBP
$8,612 USD
View
Price last confirmed 32 days ago
14 more retailers have this diamond
Prices start from £3,379 GBPSave up to £519 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.

B+
1.02ct Marquise
£3,379 GBP