Asscher|Natural|GIA

1.50ct I SI1 Asscher Natural Diamond

ID • I/SI1 • GIA 5231913356

Certificate GIA 5231913356

Diamond specifications and retailer prices

From £2,331 GBP
$3,123 USD
As of November 1, 2026
Save £2,770 GBP (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £5,527 GBP at NZ Jewellers · As of October 21, 2026
View at NZ Jewellers

About this 1.5ct natural asscher diamond

This 1.5ct natural asscher sits in the one-and-a-half to two carat band, graded I 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 5231913356. Listed at 13 retailers as of November 1, 2026, with a 119% 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

1.50
Carat
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231913356
Dimensions6.25 × 6.07 × 4.17 mm
L/W Ratio1.03
Top View
6.25 mm6.07 mm1.50 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231913356
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.7%

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: £5,527 GBP|Low: £2,269 GBP|High: £5,527 GBP|Avg: £3,359 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 6£2,269 GBP
Retailer 3£2,331 GBP
Retailer 10£2,472 GBP
Retailer 11£2,874 GBP
Retailer 4£2,955 GBP
Retailer 9£2,985 GBP
Retailer 12£3,276 GBP
Retailer 14£3,276 GBP
Retailer 13£3,316 GBP
Retailer 5£3,388 GBP
Retailer 2£3,624 GBP
Retailer 8£3,937 GBP
Retailer 7£5,101 GBP
NZ Jewellers£5,527 GBP

29 data points across 14 retailers

13 retailers£2,331 GBP to £5,101 GBP

A
Cheapest Retailer
-
£2,331 GBP
$3,123 USD
A
Retailer 2
-
£2,472 GBP
$3,312 USD
View
Retailer 3
-
£2,874 GBP
$3,851 USD
View
Price last confirmed 10 days ago
A
Retailer 4
-
£2,955 GBP
$3,960 USD
View
Retailer 5
-
£2,985 GBP
$3,999 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
£3,276 GBP
$4,390 USD
View
A
Retailer 7
-
£3,276 GBP
$4,390 USD
View
Retailer 8
-
£3,316 GBP
$4,443 USD
View
Price last confirmed 9 days ago
A
Retailer 9
-
£3,388 GBP
$4,540 USD
View
B+
Retailer 10
-
£3,624 GBP
€4,624 EUR
View
B+
Retailer 11
-
£3,937 GBP
ZAR 85,226 ZAR
View
B+
Retailer 12
-
£5,101 GBP
View
Most Expensive
NZ Jewellers
1d35b499-38ac-418d-8517-8b3d530ac936 · Oct 21
£5,527 GBP
$7,405 USD
View
Price last confirmed 12 days ago
12 more retailers have this diamond
Prices start from £2,331 GBPSave up to £2,770 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 Asscher
£2,331 GBP