Round|Natural|GIA

0.43ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 1485758773

Certificate GIA 1485758773

Diamond specifications and retailer prices

From £297 GBP
$398 USD
As of October 31, 2026
Save £434 GBP (59%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,206 GBP at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 0.43ct natural round diamond

This 0.43ct natural round sits in the sub-half-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1485758773. Listed at 18 retailers as of October 29, 2026, with a 146% 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

0.43
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1485758773
Dimensions4.78 × 4.81 × 3.01 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
4.78 mm4.81 mm0.43 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1485758773
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

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: Oct 31
Current: £388 GBP|Low: £307 GBP|High: £736 GBP|Avg: £472 GBP|+6.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 7£307 GBP
Retailer 6£345 GBP
Retailer 1£388 GBP
Retailer 5£427 GBP
Retailer 2£480 GBP
Retailer 3£649 GBP
Retailer 4£731 GBP

39 data points across 7 retailers

18 retailers£297 GBP to £731 GBP

Retailer 1
-
£285 GBP
$382 USD
Price last confirmed 45 days ago
Retailer 2
-
£285 GBP
$382 USD
View
Price last confirmed 24 days ago
A
Retailer 3
-
£297 GBP
$398 USD
View
Retailer 4
-
£307 GBP
$411 USD
View
Price last confirmed 24 days ago
Retailer 5
-
£318 GBP
$426 USD
View
Price last confirmed 33 days ago
B+
Retailer 6
-
£366 GBP
$490 USD
View
B+
Retailer 7
-
£366 GBP
$490 USD
View
B+
Retailer 8
-
£373 GBP
$500 USD
View
B+
Retailer 9
-
£374 GBP
$501 USD
View
Retailer 10
-
£384 GBP
$514 USD
View
Price last confirmed 40 days ago
Retailer 11
-
£384 GBP
$514 USD
View
Price last confirmed 23 days ago
B+
Retailer 12
-
£388 GBP
View
B+
Retailer 13
-
£427 GBP
$572 USD
View
B+
Retailer 14
-
£480 GBP
€613 EUR
View
B
Retailer 15
-
£649 GBP
View
B
Retailer 16
-
£731 GBP
View
Retailer 17
-
£1,206 GBP
$1,616 USD
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
0e8d26a1-d705-4269-9a85-01389a435517 · Sep 21
£1,206 GBP
$1,616 USD
View
Price last confirmed 41 days ago
17 more retailers have this diamond
Prices start from £297 GBPSave up to £434 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
0.43ct Round
£297 GBP