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Marquise|Natural|GIA

0.37ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 2568231653

Certificate GIA 2568231653

Diamond specifications and retailer prices

From £182 GBP
₹23,266 INR
As of November 1, 2026
Save £402 GBP (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £970 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.37ct natural marquise diamond

This 0.37ct natural marquise sits in the sub-half-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2568231653. Listed at 10 retailers as of November 1, 2026, with a 221% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.37
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2568231653
Dimensions6.96 × 3.77 × 2.39 mm
L/W Ratio1.85
Girdle conditionSlightly Thick to Very Thick
Key to symbols
Crystal
Top View
6.96 mm3.77 mm0.37 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2568231653
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.5%

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: £970 GBP|Low: £178 GBP|High: £1,081 GBP|Avg: £410 GBP|-10.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 4£182 GBP
Retailer 8£220 GBP
Retailer 5£253 GBP
Retailer 10£265 GBP
Retailer 9£278 GBP
Retailer 7£281 GBP
Retailer 3£444 GBP
Retailer 2£512 GBP
Retailer 6£585 GBP
NZ Jewellers£970 GBP

28 data points across 10 retailers

10 retailers£182 GBP to £585 GBP

A
Cheapest Retailer
-
£182 GBP
₹23,266 INR
A
Retailer 2
-
£220 GBP
HK$2,300 HKD
View
A
Retailer 3
-
£253 GBP
$339 USD
View
A
Retailer 4
-
£265 GBP
SGD 480 SGD
View
A
Retailer 5
-
£278 GBP
$372 USD
View
A
Retailer 6
-
£281 GBP
$376 USD
View
B
Retailer 7
-
£444 GBP
View
B
Retailer 8
-
£512 GBP
View
B
Retailer 9
-
£585 GBP
View
Most Expensive
NZ Jewellers
bed5197a-404f-4847-9d63-4795a66637c6 · Oct 30
£970 GBP
$1,300 USD
View
Price under review
9 more retailers have this diamond
Prices start from £182 GBPSave up to £402 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
0.37ct Marquise
£182 GBP