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Round|Natural|GIA

0.65ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 5503414436

Certificate GIA 5503414436

Diamond specifications and retailer prices

From £744 GBP
$997 USD
As of October 31, 2026
Save £1,426 GBP (66%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,170 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.65ct natural round diamond

This 0.65ct natural round sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5503414436. Listed at 20 retailers as of October 30, 2026, with prices from £744 to £2,170, a £1,426 spread on the same certified stone. NZ Jewellers lists it at £2,170. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5503414436
Dimensions5.54 × 5.50 × 3.45 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Top View
5.54 mm5.50 mm0.65 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5503414436
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 62.6%

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: £1,240 GBP|Low: £620 GBP|High: £1,649 GBP|Avg: £976 GBP|+2.4%
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
November 1, 2026
Retailer 11£744 GBP
Retailer 3£772 GBP
Retailer 4£772 GBP
Retailer 10£772 GBP
Retailer 6£876 GBP
Retailer 2£876 GBP
Retailer 9£911 GBP
Retailer 5£940 GBP
Retailer 13£940 GBP
Retailer 12£1,163 GBP
Retailer 1£1,240 GBP
Retailer 7£1,329 GBP
Retailer 8£1,639 GBP

39 data points across 13 retailers

20 retailers£744 GBP to £2,170 GBP

B+
Cheapest Retailer
-
£744 GBP
$997 USD
Final sale: no returns
B+
Retailer 2
-
£772 GBP
$1,034 USD
View
B+
Retailer 3
-
£772 GBP
$1,034 USD
View
A
Retailer 4
-
£772 GBP
$1,035 USD
View
Retailer 5
-
£806 GBP
$1,080 USD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
£806 GBP
$1,080 USD
View
B+
Retailer 7
-
£837 GBP
$1,122 USD
View
B+
Retailer 8
-
£876 GBP
View
B+
Retailer 9
-
£876 GBP
$1,174 USD
View
B+
Retailer 10
-
£911 GBP
$1,220 USD
View
B+
Retailer 11
-
£930 GBP
$1,246 USD
View
B+
Retailer 12
-
£940 GBP
$1,260 USD
View
B+
Retailer 13
-
£940 GBP
$1,260 USD
View
B
Retailer 14
-
£970 GBP
$1,300 USD
View
Retailer 15
-
£1,163 GBP
A$2,398 AUD
View
Price last confirmed 28 days ago
B
Retailer 16
-
£1,240 GBP
€1,582 EUR
View
B
Retailer 17
-
£1,329 GBP
ZAR 28,764 ZAR
View
B
Retailer 18
-
£1,639 GBP
View
B
Retailer 19
-
£1,830 GBP
View
Most Expensive
B
NZ Jewellers
abc41319-8657-4be9-8e5f-043372ad706a · Oct 30
£2,170 GBP
$2,908 USD
View
19 more retailers have this diamond
Prices start from £744 GBPSave up to £1,426 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
£744 GBP