CaratHunter
Plans
Asscher|Natural|GIA

1.20ct I SI1 Asscher Natural Diamond

GD • I/SI1 • GIA 1559083555

Certificate GIA 1559083555

Diamond specifications and retailer prices

From £991 GBP
As of November 6, 2026
Save £246 GBP (20%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,237 GBP at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.2ct natural asscher diamond

This 1.2ct natural asscher sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1559083555. Listed at 7 retailers as of November 6, 2026, with prices from £991 to £1,237, a £246 spread on the same certified stone. GemTrove lists it at £1,237. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1559083555
Dimensions5.76 × 5.71 × 3.91 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
5.76 mm5.71 mm1.20 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1559083555
Side View
Table 68.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.5%

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: Nov 6
Current: £1,237 GBP|Low: £858 GBP|High: £1,304 GBP|Avg: £1,101 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4£991 GBP
Retailer 7£994 GBP
Retailer 3£1,004 GBP
Retailer 2£1,079 GBP
Retailer 6£1,134 GBP
Retailer 5£1,201 GBP
GemTrove£1,237 GBP

41 data points across 7 retailers

7 retailers£991 GBP to £1,237 GBP

B+
Cheapest Retailer
-
£991 GBP
Final sale: no returns
A
Retailer 2
-
£994 GBP
View
A
Retailer 3
-
£1,004 GBP
View
B+
Retailer 4
-
£1,079 GBP
View
B+
Retailer 5
-
£1,134 GBP
View
B+
Retailer 6
-
£1,201 GBP
View
Most Expensive
B+
GemTrove
GT-N-00945645-98 · Nov 6
£1,237 GBP
A$2,548 AUD
View
6 more retailers have this diamond
Prices start from £991 GBPSave up to £246 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
1.20ct Asscher
£991 GBP