CaratHunter
Plans
Round|Natural|GIA

0.65ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2554074517

Certificate GIA 2554074517

Diamond specifications and retailer prices

From £569 GBP
$763 USD
As of October 31, 2026
Save £360 GBP (39%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £930 GBP at Frank Darling · As of November 1, 2026
View at Frank Darling

About this 0.65ct natural round diamond

This 0.65ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554074517. Listed at 14 retailers as of October 31, 2026, with prices from £569 to £930, a £360 spread on the same certified stone. Frank Darling lists it at £930. 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

0.65
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2554074517
Dimensions5.51 × 3.44 × 3.44 mm
L/W Ratio1.60
Top View
5.51 mm3.44 mm0.65 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554074517
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 40.6°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: £930 GBP|Low: £569 GBP|High: £942 GBP|Avg: £730 GBP|-1.3%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 10£569 GBP
Retailer 13£582 GBP
Retailer 5£620 GBP
Retailer 4£633 GBP
Retailer 11£636 GBP
Retailer 9£640 GBP
Retailer 7£684 GBP
Retailer 2£714 GBP
Retailer 8£810 GBP
Retailer 6£829 GBP
Retailer 12£868 GBP
Retailer 3£922 GBP
Frank Darling£930 GBP

37 data points across 13 retailers

14 retailers£569 GBP to £930 GBP

A
Cheapest Retailer
-
£569 GBP
$763 USD
A
Retailer 2
-
£582 GBP
$780 USD
View
A
Retailer 3
-
£620 GBP
SGD 1,123 SGD
View
A
Retailer 4
-
£633 GBP
$848 USD
View
A
Retailer 5
-
£636 GBP
SGD 1,152 SGD
View
A
Retailer 6
-
£640 GBP
$858 USD
View
B+
Retailer 7
-
£684 GBP
View
B+
Retailer 8
-
£714 GBP
$957 USD
View
B+
Retailer 9
-
£739 GBP
$990 USD
View
B+
Retailer 10
-
£810 GBP
View
B+
Retailer 11
-
£829 GBP
€1,058 EUR
View
B
Retailer 12
-
£868 GBP
$1,163 USD
View
B+
Retailer 13
-
£922 GBP
$1,236 USD
View
Most Expensive
B
Frank Darling
2624128HK · Nov 1
£930 GBP
$1,246 USD
View
13 more retailers have this diamond
Prices start from £569 GBPSave up to £360 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
0.65ct Round
£569 GBP