CaratHunter
Plans
Marquise|Natural|GIA

1.20ct F VS1 Marquise Natural Diamond

VG • F/VS1 • GIA 1558604351

Certificate GIA 1558604351

Diamond specifications and retailer prices

From £5,310 GBP
As of November 5, 2026
Save £974 GBP (16%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £6,284 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1558604351. Listed at 4 retailers as of November 5, 2026, with prices from £5,310 to £6,284, a £974 spread on the same certified stone. Blue Nile lists it at £6,284. 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

1.20
Carat
F
Colour
VS1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1558604351
Dimensions10.36 × 5.51 × 3.58 mm
L/W Ratio1.88
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
10.36 mm5.51 mm1.20 ctF / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558604351
Side View
Table 62.0%Crown 36.4°Girdle: STK-THKPavilion 41°Culet: NoneDepth 65.0%

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: £6,284 GBP|Low: £5,310 GBP|High: £6,717 GBP|Avg: £5,784 GBP|-6.4%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 4£5,310 GBP
Retailer 2£5,407 GBP
Retailer 3£5,602 GBP
Blue Nile£6,284 GBP

43 data points across 4 retailers

4 retailers£5,310 GBP to £6,284 GBP

B+
Cheapest Retailer
-
£5,310 GBP
B+
Retailer 2
-
£5,407 GBP
View
B+
Retailer 3
-
£5,602 GBP
View
Most Expensive
B+
Blue Nile
29538494 · Nov 5
£6,284 GBP
$8,458 USD
View
3 more retailers have this diamond
Prices start from £5,310 GBPSave up to £974 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+
1.20ct Marquise
£5,310 GBP