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Round|Natural|GIA

1.51ct H VS1 Round Natural Diamond

EX • H/VS1 • GIA 1549506833

Certificate GIA 1549506833

Diamond specifications and retailer prices

From £5,503 GBP
As of November 5, 2026
Save £4,295 GBP (44%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £10,481 GBP at NZ Jewellers · As of September 28, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 1549506833. Listed at 20 retailers as of November 4, 2026, with a 78% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1549506833
Dimensions7.30 × 7.33 × 4.54 mm
L/W Ratio1.00
Star length50%
Culet sizeNone
Key to symbols
Needle, Pinpoint
Top View
7.30 mm7.33 mm1.51 ctH / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549506833
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

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 5
Current: £7,630 GBP|Low: £5,503 GBP|High: £10,134 GBP|Avg: £7,346 GBP|-4.8%
Retailer 1
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
November 6, 2026
Retailer 4£5,503 GBP
Retailer 5£6,093 GBP
Retailer 3£6,226 GBP
Retailer 12£6,374 GBP
Retailer 2£6,460 GBP
Retailer 6£6,507 GBP
Retailer 7£6,710 GBP
Retailer 8£6,922 GBP
Retailer 9£6,949 GBP
Retailer 10£7,100 GBP
Retailer 14£7,283 GBP
Retailer 11£7,518 GBP
Retailer 1£7,630 GBP
Retailer 13£8,600 GBP
Retailer 15£9,798 GBP

23 data points across 15 retailers

20 retailers£5,503 GBP to £9,798 GBP

A
Cheapest Retailer
-
£5,503 GBP
B+
Retailer 2
-
£6,093 GBP
View
B+
Retailer 3
-
£6,226 GBP
View
B+
Retailer 4
-
£6,374 GBP
View
B+
Retailer 5
-
£6,460 GBP
View
Retailer 6
-
£6,466 GBP
View
Price last confirmed 21 days ago
B+
Retailer 7
-
£6,507 GBP
View
Final sale: no returns
Retailer 8
-
£6,710 GBP
View
Price last confirmed 14 days ago
B+
Retailer 9
-
£6,922 GBP
View
B+
Retailer 10
-
£6,949 GBP
View
B+
Retailer 11
-
£7,100 GBP
View
B+
Retailer 12
-
£7,283 GBP
View
B+
Retailer 13
-
£7,518 GBP
View
Retailer 14
-
£7,520 GBP
View
Price last confirmed 36 days ago
B+
Retailer 15
-
£7,630 GBP
View
Retailer 16
-
£7,636 GBP
View
Price last confirmed 38 days ago
B
Retailer 17
-
£8,600 GBP
View
Retailer 18
-
£8,677 GBP
View
Price last confirmed 38 days ago
B
Retailer 19
-
£9,798 GBP
View
Most Expensive
NZ Jewellers
56a4a430-da90-4b97-866e-d90d1a719fed · Sep 28
£10,481 GBP
$14,106 USD
View
Price last confirmed 39 days ago
19 more retailers have this diamond
Prices start from £5,503 GBPSave up to £4,295 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
£5,503 GBP