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Oval|Natural|GIA

1.20ct G SI1 Oval Natural Diamond

VG • G/SI1 • GIA 6551079120

Certificate GIA 6551079120

Diamond specifications and retailer prices

From £2,063 GBP
HK$21,600 HKD
As of November 1, 2026
Save £2,771 GBP (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,834 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551079120. Listed at 22 retailers as of October 28, 2026, with prices from £2,063 to £4,834, a £2,771 spread on the same certified stone. Queensmith lists it at £4,834. 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

1.20
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551079120
Dimensions8.17 × 5.93 × 3.78 mm
L/W Ratio1.38
Top View
8.17 mm5.93 mm1.20 ctG / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551079120
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.7%

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: Nov 1
Current: £4,834 GBP|Low: £2,044 GBP|High: £4,853 GBP|Avg: £2,989 GBP|+2.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 14£2,063 GBP
Retailer 9£2,163 GBP
Retailer 3£2,420 GBP
Retailer 16£2,456 GBP
Retailer 6£2,529 GBP
Retailer 4£2,741 GBP
Retailer 5£2,741 GBP
Retailer 10£2,821 GBP
Retailer 12£2,864 GBP
Retailer 2£2,873 GBP
Retailer 7£2,875 GBP
Retailer 8£2,962 GBP
Retailer 15£3,208 GBP
Retailer 13£3,368 GBP
Retailer 11£4,583 GBP
Queensmith£4,834 GBP

27 data points across 16 retailers

22 retailers£2,063 GBP to £4,834 GBP

A
Cheapest Retailer
-
£2,063 GBP
HK$21,600 HKD
A
Retailer 2
-
£2,163 GBP
₹275,958 INR
View
B+
Retailer 3
-
£2,420 GBP
SGD 4,381 SGD
View
B+
Retailer 4
-
£2,456 GBP
$3,291 USD
View
B+
Retailer 5
-
£2,529 GBP
$3,389 USD
View
Final sale: no returns
B+
Retailer 6
-
£2,538 GBP
$3,401 USD
View
B+
Retailer 7
-
£2,541 GBP
$3,405 USD
View
B
Retailer 8
-
£2,696 GBP
A$5,558 AUD
View
Retailer 9
-
£2,741 GBP
$3,672 USD
View
Price last confirmed 14 days ago
Retailer 10
-
£2,741 GBP
$3,672 USD
View
Price last confirmed 16 days ago
Retailer 11
-
£2,766 GBP
$3,706 USD
View
Price last confirmed 34 days ago
B
Retailer 12
-
£2,821 GBP
$3,780 USD
View
B
Retailer 13
-
£2,864 GBP
View
B
Retailer 14
-
£2,873 GBP
$3,850 USD
View
B
Retailer 15
-
£2,875 GBP
SGD 5,206 SGD
View
Retailer 16
-
£2,962 GBP
A$6,106 AUD
View
Price last confirmed 24 days ago
Retailer 17
-
£3,191 GBP
$4,276 USD
View
Price last confirmed 34 days ago
B
Retailer 18
-
£3,208 GBP
€4,094 EUR
View
B
Retailer 19
-
£3,368 GBP
ZAR 72,912 ZAR
View
B
Retailer 20
-
£4,583 GBP
View
Retailer 21
-
£4,818 GBP
$6,456 USD
View
Price last confirmed 32 days ago
Most Expensive
B
Queensmith
6551079120 · Oct 28
£4,834 GBP
View
21 more retailers have this diamond
Prices start from £2,063 GBPSave up to £2,771 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
1.20ct Oval
£2,063 GBP