CaratHunter
Plans
Marquise|Natural|GIA

1.02ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 7511155425

Certificate GIA 7511155425

Diamond specifications and retailer prices

From £3,468 GBP
As of November 5, 2026
Save £1,009 GBP (23%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £4,477 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded E 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 7511155425. Listed at 3 retailers as of November 5, 2026, with prices from £3,468 to £4,477, a £1,009 spread on the same certified stone. 77 Diamonds lists it at £4,477. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7511155425
Dimensions10.11 × 5.04 × 3.21 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Indented Natural, Natural
Top View
10.11 mm5.04 mm1.02 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7511155425
Side View
Table 60.0%CrownGirdlePavilionCulet: NoneDepth 63.6%

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 5
Current: £4,477 GBP|Low: £3,574 GBP|High: £4,537 GBP|Avg: £4,039 GBP|+1.1%
77 Diamonds
Retailer 2
November 6, 2026
Retailer 2£3,574 GBP
77 Diamonds£4,477 GBP

38 data points across 2 retailers

3 retailers£3,468 GBP to £4,477 GBP

B+
Cheapest Retailer
-
£3,468 GBP
B+
Retailer 2
-
£3,574 GBP
View
Most Expensive
B
77 Diamonds
MQMBFXFZDAKC · Nov 6
£4,477 GBP
View
2 more retailers have this diamond
Prices start from £3,468 GBPSave up to £1,009 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
£3,468 GBP