CaratHunter
Plans
Round|Lab Grown|GIA

1.03ct D FL Round Lab Grown Diamond

EX • D/FL • GIA 6512507556

Certificate GIA 6512507556

Diamond specifications and retailer prices

From £1,253 GBP
$1,680 USD
As of November 1, 2026
Save £1,817 GBP (59%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £7,369 GBP at With Clarity · As of November 3, 2026
View at With Clarity

About this 1.03ct lab-grown round diamond

This 1.03ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6512507556. Listed at 23 retailers as of November 1, 2026, with a 145% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 6512507556
Dimensions6.51 × 6.54 × 3.97 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
6.51 mm6.54 mm1.03 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512507556
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.9%

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: Nov 1
Current: £3,014 GBP|Low: £230 GBP|High: £4,740 GBP|Avg: £2,384 GBP|+2.5%
Retailer 1
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 3, 2026
Retailer 7£1,412 GBP
Retailer 10£1,536 GBP
Retailer 11£1,637 GBP
Retailer 6£1,684 GBP
Retailer 4£1,764 GBP
Retailer 2£2,083 GBP
Retailer 9£2,234 GBP
Retailer 5£2,341 GBP
Retailer 3£2,356 GBP
Retailer 12£2,477 GBP
Retailer 13£2,598 GBP
Retailer 1£3,014 GBP
Retailer 8£3,070 GBP
Retailer 14£4,677 GBP

43 data points across 14 retailers

23 retailers£1,253 GBP to £3,070 GBP

B+
Cheapest Retailer
-
£1,253 GBP
$1,680 USD
B
Retailer 2
-
£1,412 GBP
$1,893 USD
View
B
Retailer 3
-
£1,536 GBP
$2,060 USD
View
B
Retailer 4
-
£1,581 GBP
$2,120 USD
View
Final sale: no returns
Retailer 5
-
£1,615 GBP
$2,166 USD
View
Price last confirmed 57 days ago
B
Retailer 6
-
£1,637 GBP
$2,196 USD
View
Retailer 7
-
£1,637 GBP
$2,196 USD
View
Price last confirmed 23 days ago
B
Retailer 8
-
£1,651 GBP
$2,214 USD
View
B
Retailer 9
-
£1,684 GBP
$2,259 USD
View
B+
Retailer 10
-
£1,764 GBP
$2,365 USD
View
B
Retailer 11
-
£2,083 GBP
A$4,298 AUD
View
Retailer 12
-
£2,234 GBP
View
Price under review
Retailer 13
-
£2,341 GBP
$3,140 USD
View
Price under review
Retailer 14
-
£2,356 GBP
$3,160 USD
View
Price under review
Retailer 15
-
£2,477 GBP
$3,322 USD
View
Price under review
Retailer 16
-
£2,598 GBP
€3,318 EUR
View
Price under review
Retailer 17
-
£3,014 GBP
ZAR 65,289 ZAR
View
Price under review
B
Retailer 18
-
£3,070 GBP
$4,117 USD
View
Retailer 19
-
£4,677 GBP
View
Price under review
Most Expensive
With Clarity
6512507556 · Nov 3
£7,369 GBP
$9,882 USD
View
Price under review
19 more retailers have this diamond
Prices start from £1,253 GBPSave up to £1,817 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+
1.03ct Round
£1,253 GBP