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Marquise|Natural|GIA

0.70ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 6561551146

Certificate GIA 6561551146

Diamond specifications and retailer prices

From £1,007 GBP
SGD 1,826 SGD
As of October 31, 2026
Save £814 GBP (45%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,820 GBP at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

About this 0.7ct natural marquise diamond

This 0.7ct natural marquise sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6561551146. Listed at 15 retailers as of October 31, 2026, with prices from £1,007 to £1,820, a £814 spread on the same certified stone. Helzberg Diamonds lists it at £1,820. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.70
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.91°
Pavilion angle41.68°
OriginNatural
Grading LabGIA
CertificateGIA 6561551146
Dimensions8.63 × 4.66 × 2.96 mm
L/W Ratio1.85
Culet sizeNone
Top View
8.63 mm4.66 mm0.70 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561551146
Side View
Table 60.0%Crown 35.91°Girdle: STK-VTKPavilion 41.68°Culet: NoneDepth 63.6%

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 31
Current: £1,820 GBP|Low: £1,015 GBP|High: £1,820 GBP|Avg: £1,254 GBP
Helzberg Diamonds
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 14£1,015 GBP
Retailer 9£1,028 GBP
Retailer 5£1,032 GBP
Retailer 13£1,043 GBP
Retailer 12£1,069 GBP
Retailer 4£1,105 GBP
Retailer 7£1,125 GBP
Retailer 11£1,233 GBP
Retailer 8£1,274 GBP
Retailer 3£1,394 GBP
Retailer 2£1,459 GBP
Retailer 10£1,547 GBP
Retailer 6£1,639 GBP
Helzberg Diamonds£1,820 GBP

25 data points across 14 retailers

15 retailers£1,007 GBP to £1,820 GBP

B
Cheapest Retailer
-
£1,007 GBP
SGD 1,826 SGD
B
Retailer 2
-
£1,015 GBP
$1,362 USD
View
B
Retailer 3
-
£1,028 GBP
$1,380 USD
View
B
Retailer 4
-
£1,032 GBP
$1,385 USD
View
B+
Retailer 5
-
£1,043 GBP
$1,400 USD
View
B
Retailer 6
-
£1,069 GBP
$1,434 USD
View
B
Retailer 7
-
£1,105 GBP
SGD 2,004 SGD
View
B
Retailer 8
-
£1,125 GBP
View
B
Retailer 9
-
£1,233 GBP
$1,654 USD
View
B
Retailer 10
-
£1,274 GBP
$1,709 USD
View
B
Retailer 11
-
£1,394 GBP
$1,870 USD
View
B
Retailer 12
-
£1,459 GBP
€1,865 EUR
View
B
Retailer 13
-
£1,547 GBP
$2,076 USD
View
B
Retailer 14
-
£1,639 GBP
$2,199 USD
View
Most Expensive
B
Helzberg Diamonds
XZRMLMHLLHHKM · Nov 2
£1,820 GBP
$2,443 USD
View
14 more retailers have this diamond
Prices start from £1,007 GBPSave up to £814 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+
0.70ct Marquise
£1,007 GBP