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0.65ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2546808540

Certificate GIA 2546808540

Diamond specifications and retailer prices

From £672 GBP
$901 USD
As of October 31, 2026
Save £412 GBP (38%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,084 GBP at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 2546808540. Listed at 14 retailers as of October 26, 2026, with prices from £672 to £1,084, a £412 spread on the same certified stone. Wholesale Diamonds Direct lists it at £1,084. 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 angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2546808540
Dimensions5.50 × 5.53 × 3.43 mm
L/W Ratio1.01
Top View
5.50 mm5.53 mm0.65 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2546808540
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.3%

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: £973 GBP|Low: £672 GBP|High: £1,106 GBP|Avg: £855 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 1, 2026
Retailer 9£672 GBP
Retailer 10£692 GBP
Retailer 12£694 GBP
Retailer 2£722 GBP
Retailer 3£732 GBP
Retailer 8£741 GBP
Retailer 5£779 GBP
Retailer 6£843 GBP
Retailer 7£938 GBP
Retailer 1£973 GBP
Retailer 11£1,025 GBP
Retailer 4£1,037 GBP
Wholesale Diamonds Direct£1,084 GBP

40 data points across 13 retailers

14 retailers£672 GBP to £1,084 GBP

A
Cheapest Retailer
-
£672 GBP
$901 USD
A
Retailer 2
-
£692 GBP
SGD 1,253 SGD
View
B+
Retailer 3
-
£694 GBP
$930 USD
View
B+
Retailer 4
-
£722 GBP
$967 USD
View
B+
Retailer 5
-
£732 GBP
SGD 1,325 SGD
View
B+
Retailer 6
-
£741 GBP
$993 USD
View
B+
Retailer 7
-
£779 GBP
View
B+
Retailer 8
-
£843 GBP
$1,130 USD
View
B
Retailer 9
-
£872 GBP
$1,169 USD
View
B+
Retailer 10
-
£938 GBP
View
B+
Retailer 11
-
£973 GBP
€1,242 EUR
View
B
Retailer 12
-
£1,025 GBP
$1,373 USD
View
B
Retailer 13
-
£1,037 GBP
$1,390 USD
View
Most Expensive
B
Wholesale Diamonds Direct
262895372 · Oct 26
£1,084 GBP
$1,453 USD
View
13 more retailers have this diamond
Prices start from £672 GBPSave up to £412 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
£672 GBP