CaratHunter
Plans
Oval|Natural|GIA

1.50ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 1559181453

Certificate GIA 1559181453

Diamond specifications and retailer prices

From £4,089 GBP
₹521,813 INR
As of November 1, 2026
Save £1,067 GBP (21%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £5,156 GBP at GemTrove · As of October 31, 2026
View at GemTrove

About this 1.5ct natural oval diamond

This 1.5ct natural oval sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559181453. Listed at 8 retailers as of October 31, 2026, with prices from £4,089 to £5,156, a £1,067 spread on the same certified stone. GemTrove lists it at £5,156. 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

1.50
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559181453
Dimensions8.70 × 6.30 × 4.09 mm
L/W Ratio1.38
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural
Top View
8.70 mm6.30 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559181453
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.0%

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: £4,089 GBP|Low: £3,815 GBP|High: £5,222 GBP|Avg: £4,484 GBP|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 1£4,089 GBP
Retailer 3£4,136 GBP
Retailer 4£4,310 GBP
Retailer 5£4,450 GBP
Retailer 2£4,513 GBP
Retailer 7£4,539 GBP
Retailer 6£5,053 GBP

46 data points across 7 retailers

8 retailers£4,089 GBP to £5,156 GBP

A
Cheapest Retailer
-
£4,089 GBP
₹521,813 INR
A
Retailer 2
-
£4,136 GBP
SGD 7,488 SGD
View
A
Retailer 3
-
£4,310 GBP
$5,775 USD
View
B+
Retailer 4
-
£4,450 GBP
$5,962 USD
View
Final sale: no returns
A
Retailer 5
-
£4,513 GBP
View
A
Retailer 6
-
£4,539 GBP
MYR 24,772 MYR
View
B+
Retailer 7
-
£5,053 GBP
$6,771 USD
View
Most Expensive
B+
GemTrove
GT-N-01286400-98 · Oct 31
£5,156 GBP
A$10,628 AUD
View
7 more retailers have this diamond
Prices start from £4,089 GBPSave up to £1,067 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
1.50ct Oval
£4,089 GBP