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Marquise|Natural|GIA

1.02ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 6551892834

Certificate GIA 6551892834

Diamond specifications and retailer prices

From £1,678 GBP
$2,248 USD
As of October 28, 2026
Save £2,206 GBP (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,884 GBP at NZ Jewellers · As of October 27, 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 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 6551892834. Listed at 13 retailers as of October 27, 2026, with prices from £1,678 to £3,884, a £2,206 spread on the same certified stone. NZ Jewellers lists it at £3,884. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6551892834
Dimensions9.73 × 5.21 × 3.36 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Natural
Top View
9.73 mm5.21 mm1.02 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6551892834
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.4%

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: Oct 28
Current: £3,884 GBP|Low: £1,646 GBP|High: £4,067 GBP|Avg: £2,212 GBP|-4.5%
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
October 29, 2026
Retailer 12£1,678 GBP
Retailer 9£1,679 GBP
Retailer 4£1,714 GBP
Retailer 5£1,746 GBP
Retailer 2£1,823 GBP
Retailer 11£1,858 GBP
Retailer 14£1,858 GBP
Retailer 13£1,943 GBP
Retailer 8£1,973 GBP
Retailer 3£2,014 GBP
Retailer 10£2,143 GBP
Retailer 6£2,180 GBP
Retailer 7£3,272 GBP
NZ Jewellers£3,884 GBP

32 data points across 14 retailers

13 retailers£1,678 GBP to £3,884 GBP

A
Cheapest Retailer
-
£1,678 GBP
$2,248 USD
A
Retailer 2
-
£1,679 GBP
$2,250 USD
View
A
Retailer 3
-
£1,746 GBP
$2,340 USD
View
A
Retailer 4
-
£1,823 GBP
View
Retailer 5
-
£1,858 GBP
$2,489 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
£1,858 GBP
$2,489 USD
View
Retailer 7
-
£1,943 GBP
$2,604 USD
View
Price last confirmed 7 days ago
A
Retailer 8
-
£1,973 GBP
View
A
Retailer 9
-
£2,014 GBP
SGD 3,647 SGD
View
A
Retailer 10
-
£2,143 GBP
$2,872 USD
View
Retailer 11
-
£2,180 GBP
A$4,493 AUD
View
Price last confirmed 25 days ago
B
Retailer 12
-
£3,272 GBP
View
Most Expensive
B
NZ Jewellers
43f7986e-e3d5-441f-9879-1d566848a39a · Oct 27
£3,884 GBP
$5,204 USD
View
12 more retailers have this diamond
Prices start from £1,678 GBPSave up to £2,206 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
£1,678 GBP