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Round|Natural|GIA

1.51ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 6541690790

Certificate GIA 6541690790

Diamond specifications and retailer prices

From £2,532 GBP
HK$26,500 HKD
As of November 1, 2026
Save £3,500 GBP (58%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £6,031 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6541690790. Listed at 21 retailers as of October 30, 2026, with prices from £2,532 to £6,031, a £3,500 spread on the same certified stone. NZ Jewellers lists it at £6,031. 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
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 6541690790
Dimensions7.10 × 7.17 × 4.56 mm
L/W Ratio1.01
Top View
7.10 mm7.17 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541690790
Side View
Table 59.0%Crown 38°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 63.9%

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 1
Current: £6,031 GBP|Low: £2,512 GBP|High: £6,031 GBP|Avg: £3,776 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 16£2,532 GBP
Retailer 14£2,925 GBP
Retailer 3£3,196 GBP
Retailer 5£3,196 GBP
Retailer 2£3,244 GBP
Retailer 10£3,418 GBP
Retailer 4£3,462 GBP
Retailer 9£3,462 GBP
Retailer 8£3,469 GBP
Retailer 6£3,490 GBP
Retailer 17£3,867 GBP
Retailer 11£3,901 GBP
Retailer 7£3,994 GBP
Retailer 12£4,135 GBP
Retailer 15£4,255 GBP
Retailer 13£5,514 GBP
NZ Jewellers£6,031 GBP

35 data points across 17 retailers

21 retailers£2,532 GBP to £6,031 GBP

A
Cheapest Retailer
-
£2,532 GBP
HK$26,500 HKD
B+
Retailer 2
-
£2,925 GBP
$3,919 USD
View
B+
Retailer 3
-
£3,019 GBP
$4,045 USD
View
B+
Retailer 4
-
£3,196 GBP
SGD 5,786 SGD
View
B+
Retailer 5
-
£3,196 GBP
$4,282 USD
View
Final sale: no returns
B+
Retailer 6
-
£3,224 GBP
SGD 5,837 SGD
View
B+
Retailer 7
-
£3,244 GBP
View
B+
Retailer 8
-
£3,418 GBP
$4,580 USD
View
B+
Retailer 9
-
£3,462 GBP
$4,639 USD
View
Retailer 10
-
£3,462 GBP
$4,639 USD
View
Price last confirmed 33 days ago
B+
Retailer 11
-
£3,469 GBP
$4,648 USD
View
Retailer 12
-
£3,490 GBP
A$7,194 AUD
View
Price last confirmed 23 days ago
B
Retailer 13
-
£3,650 GBP
$4,890 USD
View
B
Retailer 14
-
£3,867 GBP
View
B
Retailer 15
-
£3,901 GBP
€4,978 EUR
View
B
Retailer 16
-
£3,994 GBP
$5,352 USD
View
B
Retailer 17
-
£4,135 GBP
View
B
Retailer 18
-
£4,255 GBP
ZAR 92,112 ZAR
View
B
Retailer 19
-
£4,920 GBP
$6,592 USD
View
B
Retailer 20
-
£5,514 GBP
View
Most Expensive
C
NZ Jewellers
7976b29a-0d7a-47bb-ae9c-a3187b2253b9 · Oct 30
£6,031 GBP
$8,081 USD
View
20 more retailers have this diamond
Prices start from £2,532 GBPSave up to £3,500 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
£2,532 GBP