Marquise|Natural|GIA

1.20ct G SI2 Marquise Natural Diamond

VG • G/SI2 • GIA 5553085902

Certificate GIA 5553085902

Diamond specifications and retailer prices

From £2,708 GBP
SGD 4,911 SGD
As of October 31, 2026
Save £289 GBP (10%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £5,163 GBP at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5553085902. Listed at 18 retailers as of October 31, 2026, with a relatively tight 11% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553085902
Dimensions9.99 × 5.49 × 3.53 mm
L/W Ratio1.82
Top View
9.99 mm5.49 mm1.20 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553085902
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £4,997 GBP|Low: £2,213 GBP|High: £5,234 GBP|Avg: £3,294 GBP|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 22, 2026
Retailer 11£2,213 GBP
Retailer 6£2,329 GBP
Retailer 12£2,657 GBP
Retailer 9£2,708 GBP
Retailer 10£2,735 GBP
Retailer 3£2,820 GBP
Retailer 5£3,008 GBP
Retailer 2£3,073 GBP
Retailer 4£3,093 GBP
Retailer 7£3,329 GBP
Retailer 8£4,982 GBP
Retailer 1£4,997 GBP

33 data points across 12 retailers

18 retailers£2,708 GBP to £2,997 GBP

Retailer 1
-
£2,213 GBP
HK$23,200 HKD
Price last confirmed 11 days ago
Retailer 2
-
£2,329 GBP
₹297,691 INR
View
Price last confirmed 13 days ago
Retailer 3
-
£2,657 GBP
$3,566 USD
View
Price last confirmed 12 days ago
B+
Retailer 4
-
£2,708 GBP
SGD 4,911 SGD
View
Retailer 5
-
£2,820 GBP
SGD 5,113 SGD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£2,841 GBP
$3,813 USD
View
Retailer 7
-
£2,963 GBP
$3,976 USD
View
Price last confirmed 16 days ago
Retailer 8
-
£2,963 GBP
$3,976 USD
View
Price last confirmed 15 days ago
Retailer 9
-
£2,963 GBP
$3,976 USD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
£2,997 GBP
A$6,188 AUD
View
Retailer 11
-
£3,008 GBP
View
Price last confirmed 12 days ago
Retailer 12
-
£3,073 GBP
$4,123 USD
View
Price last confirmed 15 days ago
Retailer 13
-
£3,093 GBP
$4,150 USD
View
Price last confirmed 12 days ago
Retailer 14
-
£3,419 GBP
$4,588 USD
View
Price last confirmed 14 days ago
Retailer 15
-
£3,569 GBP
$4,789 USD
View
Price last confirmed 48 days ago
Retailer 16
-
£4,982 GBP
View
Price last confirmed 12 days ago
Retailer 17
-
£4,997 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
abfb3ed8-bbd6-49a0-9590-4f26f109ea54 · Oct 17
£5,163 GBP
$6,928 USD
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from £2,708 GBPSave up to £289 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.

B+
1.20ct Marquise
£2,708 GBP