CaratHunter
Plans
Princess|Natural|GIA

1.51ct G SI1 Princess Natural Diamond

GD • G/SI1 • GIA 5186406134

Certificate GIA 5186406134

Diamond specifications and retailer prices

From £6,737 GBP
$9,040 USD
As of November 1, 2026
Save £5,887 GBP (47%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £12,624 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded G 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 5186406134. Listed at 21 retailers as of October 30, 2026, with prices from £6,737 to £12,624, a £5,887 spread on the same certified stone. NZ Jewellers lists it at £12,624. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5186406134
Dimensions6.52 × 6.38 × 4.60 mm
L/W Ratio1.02
Top View
6.52 mm6.38 mm1.51 ctG / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5186406134
Side View
Table 72.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 72.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £12,624 GBP|Low: £6,312 GBP|High: £12,624 GBP|Avg: £9,274 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
November 2, 2026
Retailer 10£6,737 GBP
Retailer 11£7,574 GBP
Retailer 5£8,181 GBP
Retailer 4£8,205 GBP
Retailer 12£8,332 GBP
Retailer 9£8,342 GBP
Retailer 8£8,374 GBP
Retailer 2£9,078 GBP
Retailer 3£9,468 GBP
Retailer 7£11,128 GBP
Retailer 6£11,829 GBP
NZ Jewellers£12,624 GBP

44 data points across 12 retailers

21 retailers£6,737 GBP to £12,624 GBP

B
Cheapest Retailer
-
£6,737 GBP
$9,040 USD
B
Retailer 2
-
£7,015 GBP
$9,414 USD
View
B
Retailer 3
-
£7,027 GBP
$9,430 USD
View
B
Retailer 4
-
£7,234 GBP
CA$13,483 CAD
View
B
Retailer 5
-
£7,489 GBP
$10,050 USD
View
B
Retailer 6
-
£7,574 GBP
$10,164 USD
View
B
Retailer 7
-
£7,574 GBP
$10,164 USD
View
Final sale: no returns
B
Retailer 8
-
£8,181 GBP
View
B
Retailer 9
-
£8,205 GBP
$11,011 USD
View
B
Retailer 10
-
£8,332 GBP
$11,181 USD
View
Retailer 11
-
£8,342 GBP
A$17,223 AUD
View
Price last confirmed 9 days ago
B
Retailer 12
-
£8,374 GBP
$11,237 USD
View
B
Retailer 13
-
£8,746 GBP
$11,736 USD
View
B
Retailer 14
-
£8,868 GBP
$11,900 USD
View
B
Retailer 15
-
£8,868 GBP
$11,900 USD
View
B
Retailer 16
-
£9,078 GBP
€11,602 EUR
View
B
Retailer 17
-
£9,166 GBP
$12,300 USD
View
C
Retailer 18
-
£9,468 GBP
$12,705 USD
View
C
Retailer 19
-
£11,128 GBP
ZAR 241,235 ZAR
View
B
Retailer 20
-
£11,829 GBP
View
Most Expensive
C
NZ Jewellers
ca568700-ac74-4848-a74c-55621c378e51 · Oct 30
£12,624 GBP
$16,940 USD
View
20 more retailers have this diamond
Prices start from £6,737 GBPSave up to £5,887 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 Princess
£6,737 GBP