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Round|Natural|GIA

0.18ct D I1 Round Natural Diamond

EX • D/I1 • GIA 1489242678

Certificate GIA 1489242678

Diamond specifications and retailer prices

From £91 GBP
₹11,588 INR
As of October 31, 2026
Save £167 GBP (65%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £257 GBP at B2C Jewels · As of October 31, 2026
View at B2C Jewels

About this 0.18ct natural round diamond

This 0.18ct natural round sits in the sub-half-carat band, graded D colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1489242678. Listed at 4 retailers as of October 31, 2026, with prices from £91 to £257, a £167 spread on the same certified stone. B2C Jewels lists it at £257. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.18
Carat
D
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1489242678
Dimensions3.59 × 3.62 × 2.26 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
3.59 mm3.62 mm0.18 ctD / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1489242678
Side View
Table 57.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.8%

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: Oct 31
Current: £257 GBP|Low: £91 GBP|High: £257 GBP|Avg: £157 GBP|+0.6%
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 2£91 GBP
Retailer 5£134 GBP
Retailer 3£146 GBP
Retailer 4£151 GBP
B2C Jewels£257 GBP

43 data points across 5 retailers

4 retailers£91 GBP to £257 GBP

A
Cheapest Retailer
-
£91 GBP
₹11,588 INR
B+
Retailer 2
-
£146 GBP
$195 USD
View
B+
Retailer 3
-
£151 GBP
$202 USD
View
Most Expensive
B
B2C Jewels
22131629 · Oct 31
£257 GBP
$345 USD
View
3 more retailers have this diamond
Prices start from £91 GBPSave up to £167 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
0.18ct Round
£91 GBP