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Marquise|Natural|GIA

1.02ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 7566186883

Certificate GIA 7566186883

Diamond specifications and retailer prices

From £1,313 GBP
SGD 2,377 SGD
As of October 31, 2026
Save £1,101 GBP (46%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,414 GBP at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7566186883. Listed at 12 retailers as of October 31, 2026, with prices from £1,313 to £2,414, a £1,101 spread on the same certified stone. Helzberg Diamonds lists it at £2,414. 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

1.02
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.95°
Pavilion angle40.97°
OriginNatural
Grading LabGIA
CertificateGIA 7566186883
Dimensions10.09 × 5.33 × 3.29 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.09 mm5.33 mm1.02 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566186883
Side View
Table 61.0%Crown 36.95°Girdle: MED-THKPavilion 40.97°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 31
Current: £2,414 GBP|Low: £1,313 GBP|High: £2,788 GBP|Avg: £1,690 GBP|-13.4%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10£1,313 GBP
Retailer 9£1,335 GBP
Retailer 7£1,347 GBP
Retailer 6£1,364 GBP
Retailer 8£1,370 GBP
Retailer 3£1,467 GBP
Retailer 5£1,476 GBP
Retailer 11£1,610 GBP
Retailer 12£1,740 GBP
Retailer 2£1,898 GBP
Retailer 4£2,204 GBP
Helzberg Diamonds£2,414 GBP

38 data points across 12 retailers

12 retailers£1,313 GBP to £2,414 GBP

A
Cheapest Retailer
-
£1,313 GBP
SGD 2,377 SGD
A
Retailer 2
-
£1,335 GBP
$1,789 USD
View
A
Retailer 3
-
£1,347 GBP
$1,804 USD
View
A
Retailer 4
-
£1,364 GBP
$1,828 USD
View
A
Retailer 5
-
£1,370 GBP
$1,835 USD
View
A
Retailer 6
-
£1,467 GBP
SGD 2,656 SGD
View
A
Retailer 7
-
£1,476 GBP
View
A
Retailer 8
-
£1,610 GBP
$2,157 USD
View
A
Retailer 9
-
£1,740 GBP
$2,332 USD
View
A
Retailer 10
-
£1,898 GBP
€2,422 EUR
View
B+
Retailer 11
-
£2,204 GBP
$2,953 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRNLMMHOMOOJ · Nov 1
£2,414 GBP
$3,234 USD
View
11 more retailers have this diamond
Prices start from £1,313 GBPSave up to £1,101 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
1.02ct Marquise
£1,313 GBP