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Asscher|Natural|GIA

1.51ct K SI1 Asscher Natural Diamond

GD • K/SI1 • GIA 1507993435

Certificate GIA 1507993435

Diamond specifications and retailer prices

From £1,634 GBP
As of November 4, 2026
Save £436 GBP (21%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,069 GBP at Michael Trio · As of November 6, 2026
View at Michael Trio

About this 1.51ct natural asscher diamond

This 1.51ct natural asscher sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1507993435. Listed at 6 retailers as of November 4, 2026, with prices from £1,634 to £2,069, a £436 spread on the same certified stone. Michael Trio lists it at £2,069. 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

1.51
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1507993435
Dimensions7.26 × 5.78 × 3.94 mm
L/W Ratio1.26
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
7.26 mm5.78 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1507993435
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.2%

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: £2,069 GBP|Low: £1,429 GBP|High: £2,325 GBP|Avg: £1,880 GBP|-11.0%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 17, 2026
Retailer 6£1,613 GBP
Retailer 3£1,634 GBP
Retailer 2£1,782 GBP
Retailer 4£1,827 GBP
Retailer 7£1,941 GBP
Retailer 5£2,037 GBP
Michael Trio£2,069 GBP

7 data points across 7 retailers

6 retailers£1,634 GBP to £2,069 GBP

Retailer 1
-
£1,613 GBP
Price last confirmed 81 days ago
B+
Retailer 2
-
£1,634 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,782 GBP
View
B+
Retailer 4
-
£1,827 GBP
View
B+
Retailer 5
-
£2,037 GBP
View
Most Expensive
B+
Michael Trio
7477550200 · Nov 6
£2,069 GBP
SGD 3,764 SGD
View
5 more retailers have this diamond
Prices start from £1,634 GBPSave up to £436 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+
1.51ct Asscher
£1,634 GBP