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Round|Natural|GIA

1.51ct D IF Round Natural Diamond

VG • D/IF • GIA 1192631059

Certificate GIA 1192631059

Diamond specifications and retailer prices

From £15,089 GBP
As of November 2, 2026
Save £16,390 GBP (52%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £31,479 GBP at Diamond Quarter · As of November 3, 2026
View at Diamond Quarter

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by GIA 1192631059. Listed at 9 retailers as of November 2, 2026, with prices from £15,089 to £31,479, a £16,390 spread on the same certified stone. Diamond Quarter lists it at £31,479. 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
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1192631059
Dimensions7.61 × 7.58 × 4.38 mm
L/W Ratio1.00
Culet sizeNone
Top View
7.61 mm7.58 mm1.51 ctD / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1192631059
Side View
Table 62.0%Crown 32°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 57.8%

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 2
Current: £16,748 GBP|Low: £14,832 GBP|High: £20,096 GBP|Avg: £17,297 GBP|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 4, 2026
Retailer 3£15,089 GBP
Retailer 1£16,748 GBP
Retailer 5£16,935 GBP
Retailer 4£17,386 GBP
Retailer 2£20,008 GBP

39 data points across 5 retailers

9 retailers£15,089 GBP to £31,479 GBP

A
Cheapest Retailer
-
£15,089 GBP
A
Retailer 2
-
£15,874 GBP
View
A
Retailer 3
-
£16,217 GBP
View
A
Retailer 4
-
£16,748 GBP
View
B+
Retailer 5
-
£17,386 GBP
View
B+
Retailer 6
-
£17,825 GBP
View
B+
Retailer 7
-
£20,008 GBP
View
B+
Retailer 8
-
£20,111 GBP
View
Most Expensive
B
Diamond Quarter
1.51IFD1159E183N · Nov 3
£31,479 GBP
View
8 more retailers have this diamond
Prices start from £15,089 GBPSave up to £16,390 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
1.51ct Round
£15,089 GBP