Oval|Natural|GIA

1.54ct H SI2 Oval Natural Diamond

GD • H/SI2 • GIA 6551236116

Certificate GIA 6551236116

Diamond specifications and retailer prices

From £4,013 GBP
$5,377 USD
As of October 30, 2026
Save £3,511 GBP (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £8,495 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.54ct natural oval diamond

This 1.54ct natural oval sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551236116. Listed at 15 retailers as of October 29, 2026, with a 87% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.54
Carat
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551236116
Dimensions9.10 × 6.48 × 4.02 mm
L/W Ratio1.40
Key to symbols
Crystal, Feather, Pinpoint
Top View
9.10 mm6.48 mm1.54 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551236116
Side View
Table 61.0%CrownGirdlePavilionCulet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £8,495 GBP|Low: £3,894 GBP|High: £8,495 GBP|Avg: £5,374 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9£4,013 GBP
Retailer 7£4,035 GBP
Retailer 6£4,248 GBP
Retailer 8£4,283 GBP
Retailer 2£4,872 GBP
Retailer 4£4,936 GBP
Retailer 3£5,551 GBP
Retailer 5£7,524 GBP
NZ Jewellers£8,495 GBP

39 data points across 9 retailers

15 retailers£4,013 GBP to £7,524 GBP

B+
Cheapest Retailer
-
£4,013 GBP
$5,377 USD
B+
Retailer 2
-
£4,035 GBP
$5,406 USD
View
B+
Retailer 3
-
£4,248 GBP
$5,692 USD
View
Final sale: no returns
B+
Retailer 4
-
£4,283 GBP
$5,739 USD
View
B+
Retailer 5
-
£4,508 GBP
$6,040 USD
View
B+
Retailer 6
-
£4,536 GBP
$6,078 USD
View
Retailer 7
-
£4,602 GBP
$6,166 USD
View
Price last confirmed 33 days ago
Retailer 8
-
£4,602 GBP
$6,166 USD
View
Price last confirmed 32 days ago
Retailer 9
-
£4,602 GBP
$6,166 USD
View
Price last confirmed 23 days ago
B+
Retailer 10
-
£4,872 GBP
View
B+
Retailer 11
-
£4,936 GBP
View
Retailer 12
-
£5,310 GBP
$7,115 USD
View
Price last confirmed 33 days ago
B
Retailer 13
-
£5,551 GBP
€7,083 EUR
View
B
Retailer 14
-
£7,524 GBP
View
Most Expensive
NZ Jewellers
9e329d06-ad23-4955-a527-40bc3b441a4b · Sep 30
£8,495 GBP
$11,383 USD
View
Price last confirmed 31 days ago
14 more retailers have this diamond
Prices start from £4,013 GBPSave up to £3,511 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+
1.54ct Oval
£4,013 GBP