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1.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 6552910069

Certificate GIA 6552910069

Diamond specifications and retailer prices

From £3,897 GBP
SGD 7,057 SGD
As of October 16, 2026
2 retailers carry this diamond
Most expensive: £7,365 GBP at Wholesale Diamonds Direct · As of October 14, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural round diamond

This 1.51ct natural round 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 and certified by GIA 6552910069. Listed at 2 retailers as of October 14, 2026. 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

1.51
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552910069
Dimensions7.37 × 7.41 × 4.47 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.37 mm7.41 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552910069
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.5%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 16
Current: £3,509 GBP|Low: £3,220 GBP|High: £7,921 GBP|Avg: £5,070 GBP|-5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
October 17, 2026
Retailer 7£3,220 GBP
Retailer 1£3,509 GBP
Retailer 4£3,897 GBP
Retailer 3£4,219 GBP
Retailer 5£5,002 GBP
Retailer 6£5,131 GBP
Retailer 2£6,718 GBP
Wholesale Diamonds Direct£7,365 GBP

22 data points across 8 retailers

2 retailers£3,897 GBP to £7,365 GBP

Retailer 1
-
£3,897 GBP
SGD 7,057 SGD
Price last confirmed 17 days ago
Most Expensive
Wholesale Diamonds Direct
495147661 · Oct 14
£7,365 GBP
$9,868 USD
View
Price last confirmed 18 days ago
1 more retailer has this diamond

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.

1.51ct Round
£3,897 GBP