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Marquise|Natural|GIA

1.02ct K SI1 Marquise Natural Diamond

VG • K/SI1 • GIA 1142863862

Certificate GIA 1142863862

Diamond specifications and retailer prices

From £1,559 GBP
As of November 4, 2026
Save £1,464 GBP (48%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,023 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1142863862. Listed at 7 retailers as of November 2, 2026, with prices from £1,559 to £3,023, a £1,464 spread on the same certified stone. MOH London lists it at £3,023. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.02
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1142863862
Dimensions8.82 × 5.42 × 3.32 mm
L/W Ratio1.63
Girdle conditionFaceted
Key to symbols
Feather, Crystal, Cloud, Cavity
Top View
8.82 mm5.42 mm1.02 ctK / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceMedium
CertificateGIA 1142863862
Side View
Table 61.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 61.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,023 GBP|Low: £1,531 GBP|High: £3,060 GBP|Avg: £1,997 GBP|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7£1,559 GBP
Retailer 5£1,594 GBP
Retailer 6£1,827 GBP
Retailer 4£1,875 GBP
Retailer 2£2,008 GBP
Retailer 3£2,106 GBP
MOH London£3,023 GBP

42 data points across 7 retailers

7 retailers£1,559 GBP to £3,023 GBP

B+
Cheapest Retailer
-
£1,559 GBP
B+
Retailer 2
-
£1,594 GBP
View
B
Retailer 3
-
£1,827 GBP
View
B
Retailer 4
-
£1,875 GBP
View
B
Retailer 5
-
£2,008 GBP
View
B
Retailer 6
-
£2,106 GBP
View
Most Expensive
C
MOH London
13A4BFA4F · Nov 2
£3,023 GBP
View
6 more retailers have this diamond
Prices start from £1,559 GBPSave up to £1,464 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
£1,559 GBP