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Round|Natural|GIA

1.60ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 5536009236

Certificate GIA 5536009236

Diamond specifications and retailer prices

From £3,644 GBP
₹464,949 INR
As of October 28, 2026
Save £2,197 GBP (38%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £5,841 GBP at Cape Diamonds · As of October 27, 2026
View at Cape Diamonds

About this 1.6ct natural round diamond

This 1.6ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5536009236. Listed at 7 retailers as of October 27, 2026, with prices from £3,644 to £5,841, a £2,197 spread on the same certified stone. Cape Diamonds lists it at £5,841. 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

1.60
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5536009236
Dimensions7.46 × 7.50 × 4.61 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.46 mm7.50 mm1.60 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5536009236
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.6%

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 28
Current: £5,841 GBP|Low: £3,631 GBP|High: £6,101 GBP|Avg: £4,847 GBP|-3.4%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 4£3,644 GBP
Retailer 7£3,824 GBP
Retailer 6£4,762 GBP
Retailer 3£4,954 GBP
Retailer 2£4,968 GBP
Retailer 5£4,983 GBP
Cape Diamonds£5,841 GBP

41 data points across 7 retailers

7 retailers£3,644 GBP to £5,841 GBP

A
Cheapest Retailer
-
£3,644 GBP
₹464,949 INR
A
Retailer 2
-
£3,824 GBP
$5,124 USD
View
Final sale: no returns
B+
Retailer 3
-
£4,762 GBP
$6,380 USD
View
B+
Retailer 4
-
£4,954 GBP
View
B+
Retailer 5
-
£4,968 GBP
€6,339 EUR
View
B+
Retailer 6
-
£4,983 GBP
$6,677 USD
View
Most Expensive
B
Cape Diamonds
cert_5536009236 · Oct 27
£5,841 GBP
ZAR 126,433 ZAR
View
6 more retailers have this diamond
Prices start from £3,644 GBPSave up to £2,197 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
1.60ct Round
£3,644 GBP