Round|Natural|GIA

1.01ct G SI1 Round Natural Diamond

VG • G/SI1 • GIA 2436937900

Certificate GIA 2436937900

Diamond specifications and retailer prices

From £1,635 GBP
As of November 4, 2026
Save £2,595 GBP (61%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £4,512 GBP at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2436937900. Listed at 24 retailers as of November 4, 2026, with a 159% 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

1.01
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 2436937900
Dimensions6.28 × 6.23 × 4.00 mm
L/W Ratio1.01
Star length50%
Lower girdle70%
Top View
6.28 mm6.23 mm1.01 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2436937900
Side View
Table 58.0%Crown 37.5°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £4,512 GBP|Low: £1,495 GBP|High: £4,512 GBP|Avg: £2,274 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 15
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Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 6, 2026
Retailer 21£1,635 GBP
Retailer 6£1,658 GBP
Retailer 20£1,705 GBP
Retailer 11£1,750 GBP
Retailer 15£1,768 GBP
Retailer 12£1,805 GBP
Retailer 7£1,845 GBP
Retailer 9£1,932 GBP
Retailer 4£1,956 GBP
Retailer 8£1,956 GBP
Retailer 5£2,031 GBP
Retailer 10£2,256 GBP
Retailer 2£2,271 GBP
Retailer 22£2,274 GBP
Retailer 23£2,274 GBP
Retailer 16£2,324 GBP
Retailer 3£2,355 GBP
Retailer 13£2,363 GBP
Retailer 14£2,506 GBP
Retailer 17£2,514 GBP
Retailer 18£2,634 GBP
Retailer 19£3,600 GBP
NZ Jewellers£4,512 GBP

39 data points across 23 retailers

24 retailers£1,635 GBP to £4,231 GBP

A
Cheapest Retailer
-
£1,635 GBP
A
Retailer 2
-
£1,658 GBP
View
A
Retailer 3
-
£1,705 GBP
View
A
Retailer 4
-
£1,750 GBP
View
A
Retailer 5
-
£1,768 GBP
View
B+
Retailer 6
-
£1,805 GBP
View
Final sale: no returns
A
Retailer 7
-
£1,845 GBP
View
B+
Retailer 8
-
£1,932 GBP
View
Retailer 9
-
£1,956 GBP
View
Price last confirmed 15 days ago
Retailer 10
-
£1,956 GBP
View
Price last confirmed 13 days ago
Retailer 11
-
£2,031 GBP
View
Price last confirmed 15 days ago
Retailer 12
-
£2,256 GBP
View
Price last confirmed 14 days ago
B+
Retailer 13
-
£2,271 GBP
View
B+
Retailer 14
-
£2,274 GBP
View
B+
Retailer 15
-
£2,274 GBP
View
Retailer 16
-
£2,324 GBP
View
Price last confirmed 30 days ago
B+
Retailer 17
-
£2,355 GBP
View
B+
Retailer 18
-
£2,363 GBP
View
Retailer 19
-
£2,506 GBP
View
Price last confirmed 14 days ago
B+
Retailer 20
-
£2,514 GBP
View
B
Retailer 21
-
£2,634 GBP
View
B
Retailer 22
-
£3,600 GBP
View
B
Retailer 23
-
£4,231 GBP
View
Most Expensive
NZ Jewellers
088ac0f8-0d3c-4dd6-b378-14f3d0e0b6f0 · Oct 23
£4,512 GBP
$6,073 USD
View
Price last confirmed 14 days ago
23 more retailers have this diamond
Prices start from £1,635 GBPSave up to £2,595 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
1.01ct Round
£1,635 GBP