CaratHunter
Plans
Round|Natural|GIA

1.51ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6392613089

Certificate GIA 6392613089

Diamond specifications and retailer prices

From £7,881 GBP
$10,560 USD
As of October 25, 2026
Save £7,598 GBP (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £15,479 GBP at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6392613089. Listed at 18 retailers as of October 25, 2026, with prices from £7,881 to £15,479, a £7,598 spread on the same certified stone. Diamond Quarter lists it at £15,479. 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6392613089
Dimensions7.34 × 7.29 × 4.55 mm
L/W Ratio1.01
Top View
7.34 mm7.29 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6392613089
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: £9,582 GBP|Low: £7,432 GBP|High: £14,865 GBP|Avg: £10,602 GBP|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 5£7,881 GBP
Retailer 6£8,919 GBP
Retailer 8£8,919 GBP
Retailer 1£9,582 GBP
Retailer 2£9,662 GBP
Retailer 7£9,811 GBP
Retailer 3£10,795 GBP
Retailer 9£11,149 GBP
Retailer 4£14,003 GBP
Retailer 10£14,865 GBP

42 data points across 10 retailers

18 retailers£7,881 GBP to £15,479 GBP

B+
Cheapest Retailer
-
£7,881 GBP
$10,560 USD
B+
Retailer 2
-
£8,137 GBP
$10,903 USD
View
B+
Retailer 3
-
£8,275 GBP
$11,087 USD
View
B+
Retailer 4
-
£8,399 GBP
CA$15,630 CAD
View
B+
Retailer 5
-
£8,919 GBP
$11,950 USD
View
B+
Retailer 6
-
£8,919 GBP
$11,950 USD
View
Final sale: no returns
B+
Retailer 7
-
£9,582 GBP
View
B
Retailer 8
-
£9,662 GBP
$12,946 USD
View
B
Retailer 9
-
£9,811 GBP
$13,145 USD
View
B
Retailer 10
-
£10,314 GBP
$13,820 USD
View
B
Retailer 11
-
£10,314 GBP
$13,820 USD
View
B
Retailer 12
-
£10,325 GBP
$13,835 USD
View
B
Retailer 13
-
£10,658 GBP
$14,280 USD
View
B
Retailer 14
-
£10,795 GBP
€13,775 EUR
View
B
Retailer 15
-
£11,149 GBP
$14,938 USD
View
B
Retailer 16
-
£14,003 GBP
View
B
Retailer 17
-
£14,865 GBP
$19,917 USD
View
Most Expensive
B
Diamond Quarter
1.51SI2D638976D1N · Oct 29
£15,479 GBP
View
17 more retailers have this diamond
Prices start from £7,881 GBPSave up to £7,598 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.

B+
1.51ct Round
£7,881 GBP