CaratHunter
Plans
Round|Natural|GIA

1.51ct D I1 Round Natural Diamond

VG • D/I1 • GIA 6551703440

Certificate GIA 6551703440

Diamond specifications and retailer prices

From £3,105 GBP
HK$32,500 HKD
As of October 31, 2026
Save £3,728 GBP (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £6,833 GBP at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 I1 clarity (included), with a very-good cut grade and certified by GIA 6551703440. Listed at 11 retailers as of October 26, 2026, with prices from £3,105 to £6,833, a £3,728 spread on the same certified stone. Wholesale Diamonds Direct lists it at £6,833. 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
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6551703440
Dimensions7.07 × 7.16 × 4.63 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Knot, Needle, Indented Natural
Top View
7.07 mm7.16 mm1.51 ctD / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551703440
Side View
Table 57.0%Crown 37.5°Girdle: STK-THKPavilion 40.8°Culet: NoneDepth 65.0%

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: Oct 31
Current: £3,164 GBP|Low: £3,076 GBP|High: £7,590 GBP|Avg: £4,880 GBP|-12.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
October 31, 2026
Retailer 3£3,105 GBP
Retailer 1£3,164 GBP
Retailer 2£3,495 GBP
Retailer 7£4,093 GBP
Retailer 8£4,538 GBP
Retailer 9£4,538 GBP
Retailer 4£4,624 GBP
Retailer 6£4,972 GBP
Retailer 5£6,701 GBP
Wholesale Diamonds Direct£6,833 GBP

44 data points across 10 retailers

11 retailers£3,105 GBP to £6,833 GBP

A
Cheapest Retailer
-
£3,105 GBP
HK$32,500 HKD
A
Retailer 2
-
£3,164 GBP
₹403,768 INR
View
B+
Retailer 3
-
£3,495 GBP
$4,683 USD
View
B+
Retailer 4
-
£4,093 GBP
$5,484 USD
View
B+
Retailer 5
-
£4,538 GBP
$6,081 USD
View
B+
Retailer 6
-
£4,538 GBP
$6,081 USD
View
B+
Retailer 7
-
£4,538 GBP
$6,081 USD
View
B+
Retailer 8
-
£4,624 GBP
$6,195 USD
View
B+
Retailer 9
-
£4,972 GBP
€6,345 EUR
View
B
Retailer 10
-
£6,701 GBP
$8,979 USD
View
Most Expensive
B
Wholesale Diamonds Direct
257502714 · Oct 26
£6,833 GBP
$9,155 USD
View
10 more retailers have this diamond
Prices start from £3,105 GBPSave up to £3,728 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
£3,105 GBP