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Marquise|Lab Grown|GIA

1.67ct D IF Marquise Lab Grown Diamond

ID • D/IF • GIA 1518765462

Certificate GIA 1518765462

Diamond specifications and retailer prices

From £836 GBP
$1,120 USD
As of October 30, 2026
Save £2,754 GBP (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,590 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.67ct lab-grown marquise diamond

This 1.67ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1518765462. Listed at 11 retailers as of October 30, 2026, with prices from £836 to £3,590, a £2,754 spread on the same certified stone. Brilliant Earth lists it at £3,590. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.67
Carat
D
Colour
IF
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 1518765462
Dimensions12.61 × 6.34 × 3.79 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This is a man-made diamond.
Key to symbols
Minor Details of Polish
Top View
12.61 mm6.34 mm1.67 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1518765462
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.8%

Caratlytics Score

How it works →
A+
Exceptional
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 30
Current: £3,590 GBP|Low: £670 GBP|High: £6,405 GBP|Avg: £2,386 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 4£693 GBP
Retailer 7£836 GBP
Retailer 9£910 GBP
Retailer 13£936 GBP
Retailer 11£969 GBP
Retailer 2£1,968 GBP
Retailer 10£2,006 GBP
Retailer 12£2,582 GBP
Retailer 8£2,696 GBP
Retailer 3£2,894 GBP
Retailer 6£3,458 GBP
Brilliant Earth£3,590 GBP
Retailer 5£6,405 GBP

25 data points across 13 retailers

11 retailers£836 GBP to £3,590 GBP

A+
Cheapest Retailer
-
£836 GBP
$1,120 USD
A+
Retailer 2
-
£910 GBP
$1,219 USD
View
A
Retailer 3
-
£936 GBP
$1,254 USD
View
Final sale: no returns
A
Retailer 4
-
£969 GBP
$1,299 USD
View
B+
Retailer 5
-
£1,968 GBP
ZAR 42,591 ZAR
View
B+
Retailer 6
-
£2,006 GBP
$2,688 USD
View
B+
Retailer 7
-
£2,582 GBP
View
B+
Retailer 8
-
£2,696 GBP
$3,612 USD
View
B
Retailer 9
-
£2,894 GBP
$3,877 USD
View
B
Retailer 10
-
£3,458 GBP
View
Most Expensive
B
Brilliant Earth
13624762Y · Oct 30
£3,590 GBP
$4,810 USD
View
10 more retailers have this diamond
Prices start from £836 GBPSave up to £2,754 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+
1.67ct Marquise
£836 GBP