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Round|Lab Grown|GIA

0.70ct H SI2 Round Lab Grown Diamond

EX • H/SI2

Diamond specifications and retailer prices

From £94 GBP
As of November 1, 2026
Save £785 GBP (89%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £880 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 0.7ct lab-grown round diamond

This 0.7ct lab-grown round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 6 retailers as of October 31, 2026, with prices from £94 to £880, a £785 spread on the same certified stone. Blue Nile lists it at £880. 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

0.70
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
Dimensions5.73 × 5.75 × 3.51 mm
L/W Ratio1.00
Top View
5.73 mm5.75 mm0.70 ctH / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 58.0%CrownGirdle: THN - STKPavilionCulet: NDepth 60.8%

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: £880 GBP|Low: £94 GBP|High: £1,521 GBP|Avg: £685 GBP
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 4, 2026
Retailer 4£94 GBP
Retailer 5£117 GBP
Retailer 6£223 GBP
Retailer 2£348 GBP
Retailer 7£658 GBP
Retailer 3£660 GBP
Retailer 8£854 GBP
Blue Nile£880 GBP
Retailer 9£1,018 GBP
Retailer 10£1,521 GBP

6 data points across 10 retailers

6 retailers£94 GBP to £880 GBP

A
Cheapest Retailer
-
£94 GBP
A
Retailer 2
-
£117 GBP
View
Retailer 3
-
£223 GBP
View
Price last confirmed 43 days ago
B+
Retailer 4
-
£348 GBP
View
B
Retailer 5
-
£660 GBP
View
Most Expensive
B
Blue Nile
30537448 · Oct 31
£880 GBP
$1,184 USD
View
5 more retailers have this diamond
Prices start from £94 GBPSave up to £785 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
0.70ct Round
£94 GBP