Round|Natural|GIA

0.80ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2537138564

Certificate GIA 2537138564

Diamond specifications and retailer prices

From £1,031 GBP
$1,381 USD
As of October 31, 2026
Save £1,976 GBP (66%) vs most expensive(unlock to see where)
33 retailers carry this diamond
Most expensive: £3,007 GBP at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 0.8ct natural round diamond

This 0.8ct natural round sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2537138564. Listed at 33 retailers as of October 30, 2026, with a 192% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.80
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2537138564
Dimensions5.93 × 5.89 × 3.68 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.93 mm5.89 mm0.80 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2537138564
Side View
Table 58.0%Crown 36°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 62.2%

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: £1,554 GBP|Low: £1,031 GBP|High: £2,450 GBP|Avg: £1,621 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 3£1,031 GBP
Retailer 10£1,117 GBP
Retailer 2£1,149 GBP
Retailer 12£1,351 GBP
Retailer 6£1,373 GBP
Retailer 11£1,464 GBP
Retailer 1£1,554 GBP
Retailer 4£1,609 GBP
Retailer 7£1,675 GBP
Retailer 8£1,836 GBP
Retailer 5£2,160 GBP
Retailer 9£2,441 GBP

34 data points across 12 retailers

33 retailers£1,031 GBP to £3,007 GBP

A
Cheapest Retailer
-
£1,031 GBP
$1,381 USD
Final sale: no returns
A
Retailer 2
-
£1,034 GBP
$1,386 USD
View
B+
Retailer 3
-
£1,117 GBP
$1,496 USD
View
Retailer 4
-
£1,117 GBP
$1,496 USD
View
Price last confirmed 45 days ago
Retailer 5
-
£1,117 GBP
$1,496 USD
View
Price last confirmed 23 days ago
Retailer 6
-
£1,117 GBP
$1,496 USD
View
Price last confirmed 16 days ago
Retailer 7
-
£1,117 GBP
$1,496 USD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
£1,149 GBP
$1,539 USD
View
Retailer 9
-
£1,168 GBP
$1,565 USD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
£1,176 GBP
$1,576 USD
View
B+
Retailer 11
-
£1,187 GBP
$1,590 USD
View
B+
Retailer 12
-
£1,269 GBP
$1,700 USD
View
B+
Retailer 13
-
£1,269 GBP
$1,700 USD
View
Retailer 14
-
£1,289 GBP
$1,727 USD
View
Price last confirmed 23 days ago
Retailer 15
-
£1,289 GBP
$1,727 USD
View
Price last confirmed 40 days ago
Retailer 16
-
£1,289 GBP
$1,727 USD
View
Price last confirmed 11 days ago
B+
Retailer 17
-
£1,289 GBP
$1,727 USD
View
B+
Retailer 18
-
£1,314 GBP
$1,760 USD
View
B+
Retailer 19
-
£1,351 GBP
$1,810 USD
View
Retailer 20
-
£1,351 GBP
$1,810 USD
View
Price last confirmed 23 days ago
B+
Retailer 21
-
£1,373 GBP
View
B+
Retailer 22
-
£1,464 GBP
View
B+
Retailer 23
-
£1,502 GBP
$2,012 USD
View
B+
Retailer 24
-
£1,554 GBP
View
Retailer 25
-
£1,609 GBP
A$3,316 AUD
View
Price last confirmed 26 days ago
B
Retailer 26
-
£1,675 GBP
€2,138 EUR
View
B
Retailer 27
-
£1,836 GBP
ZAR 39,743 ZAR
View
B
Retailer 28
-
£2,160 GBP
View
B
Retailer 29
-
£2,441 GBP
View
B
Retailer 30
-
£3,007 GBP
$4,029 USD
View
Retailer 31
-
£3,007 GBP
$4,029 USD
View
Price last confirmed 42 days ago
Retailer 32
-
£3,007 GBP
$4,029 USD
View
Price last confirmed 35 days ago
Most Expensive
NZ Jewellers
c3b4d039-7457-4926-8fc3-c2f8983c63cb · Oct 20
£3,007 GBP
$4,029 USD
View
Price last confirmed 12 days ago
32 more retailers have this diamond
Prices start from £1,031 GBPSave up to £1,976 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
0.80ct Round
£1,031 GBP